taxonID	type	description	language	source
ED01879AFFEAFF80FF68FB65FA5D0C59.taxon	materials_examined	Known distribution. Caraguatatuba, San Sebastián and Cananéa, São Paulo, Brazil (Marcus 1952). Material and distribution in Cuba. One specimen studied alive and whole mounted (HU IX. 4.42), collected in Bahía de Gibara (March 26, 2017), intertidal, upper 20 cm of the fine-grained sand, salinity 35 ‰. Remarks. Our specimen is 1.4 mm long, measured on the whole mount, translucent, without eyes. Proboscis hooks curved, 13 µm long; muscular hook supports 9 µm long. A single testis located caudally from the pharynx. Testis connected to two globular seminal vesicles, 27 µm long. Copulatory bulb encloses the prostate vesicle and the unarmed cirrus. Cirrus 170 µm long. Prostate vesicle 38 µm long and 23 µm at the widest point. Ovary rounded and located aside from the copulatory bulb. Globular bursa located at the level of the common gonopore. Bursa connected to the common atrium, and opens externally through a duct into the vagina, at the caudal end of the body.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEAFF80FF68FC45FDCE0999.taxon	materials_examined	Schizorhynchia Meixner, 1928	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEAFF81FF68F949FB430BC3.taxon	description	(Fig. 1)	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEAFF81FF68F949FB430BC3.taxon	materials_examined	Known distribution. Le Brusc, Marseilles, France (Brunet 1968); Djezira, Mogadishu, Somalia (Schockaert 1982); Tudor Creek, Mombasa, Kenya (Jouk & DeVocht 1989). Material and distribution in Cuba. Observations on live animals, whole mounted afterwards. Eight whole mounts from Bahía de Santiago de Cuba (January 31, 2017) (HU IX. 4.43 – IX. 4.50), intertidal, superficial finegrained sand with organic matter, salinity 35 ‰. Three whole mounts from Chivirico (March 16, 2017) (HU X. 1.01 – X. 1.03), intertidal up to 0.5 m depth, medium-grained sand with organic matter, surrounded by a seagrass bed of Thalassia testudinum and Syringodium filiforme, with isolated trees of Rhizophora mangle, salinity 35 ‰. Remarks. Our animals are 0.5 – 0.9 mm long (x = 0.7 mm, n = 6), measured on the whole mounts, translucent, pinkish coloured, without eyes. Proboscis hooks curved (Fig. 1 A: h), 11 – 17 µm long (x = 14 µm; n = 5); muscular hook supports (Fig. 1 A: ms) 7 – 8 µm long (x = 7 µm; n = 5). Prostate vesicle (Fig. 1 B: pv) elongated, 71 – 102 µm long (x = 87 µm; n = 2). Seminal vesicles (Fig. 1 B: sv) rounded to oval shaped. Cirrus (Fig. 1 B: ci) an unarmed and thin sclerotized tube, 200 – 293 µm long (x = 251 µm; n = 4); it ends in a more or less rectangular sclerotized cap (Fig. 1 B: sc), 9 – 12 µm long (x = 11 µm; n = 4) and 3 – 5 µm wide (x = 4 µm; n = 4). Large bursa located caudally, bipartite, proximally with a well-defined vesicle filled with sperm. It opens externally through a coiled and ribbon shaped duct into the vagina, at the caudal end of the body.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEBFF81FF68FBD1FE9A0D8E.taxon	description	(Fig. 2) http: // zoobank. org / urn: lsid: zoobank. org: act: 9 DDAFE 63 - D 0 D 3 - 4 B 1 E-A 7 B 6 - B 6099 BF 61011	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEBFF81FF68FBD1FE9A0D8E.taxon	materials_examined	Material. One specimen studied alive and whole mounted, designated holotype (FMNH https: // id. luomus. fi / KV. 608), collected in Bahía de Gibara (type locality) (March 26, 2017), sublittoral, fine-grained sand, 1 m depth, salinity 35 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEBFF81FF68FBD1FE9A0D8E.taxon	etymology	Etymology. The epithet refers to the name given to the people that live in Gibara, where the type locality is situated.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEBFF81FF68FBD1FE9A0D8E.taxon	diagnosis	Diagnosis. Species of Cheliplana with the proboscis hooks 14 µm long, curved, and the muscular hook supports 5 µm long. A single seminal vesicle located in the caudal end of the body. Seminal vesicle and copulatory bulb directed forward. Cirrus 140 µm long and 4 µm wide distally, with the distal 13 - µm-long portion (the cirrus) armed with fine spines about 0.5 µm long.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEBFF81FF68FBD1FE9A0D8E.taxon	description	Description. Animal 0.8 mm long, measured on the whole mount, translucent, without eyes. Proboscis (Fig. 2 A: pr, 2 B) with hooks (Fig. 2 B: h) curved, 14 µm long; muscular hook supports (Fig. 2 B: ms) 5 µm long. Spiny prepharyngeal cavity (Fig. 2 A: pph) slightly longer than the pharynx. Mouth (Fig. 2 A: m) opens just caudally from the postrostral bulb (Fig. 2 A: pb). Testis (Fig. 2 A: t) located laterally from the pharynx, connected to the single seminal vesicle by a very long vas deferens. Seminal vesicle (Fig. 2 A & 2 C – D: sv) located in the caudal body end. Seminal vesicle, including the seminal duct, 184 µm long and 28 µm wide at its widest point, with the seminal duct directed forwards. Copulatory bulb (Fig. 2 C – D) comprising the prostate vesicle and a cirrus, directed forward. Prostate vesicle (Fig. 2 A & 2 C – D: pv) long-drawn. Cirrus (Fig. 2 A & 2 C – D: ci) 140 µm long and 4 µm wide distally, with the distal 13 - µm-long portion armed with small and fine spines (Fig. 2 D: sp), about 0.5 µm long. Distal part of the copulatory bulb, surrounding the spiny cirrus, marked by a strong sphincter (Fig. 2 D: sph). Kidney-shaped ovary (Fig. 2 A: ov) located at the level of the connection between the seminal vesicle and the prostate vesicle; it has the oocytes in a row, diminishing in diameter from the most distal to the most proximal end of the ovary. Bursa (Fig. 2 A: b) located at the caudal end of the body; it seems to be bipartite and opens caudally into the vagina.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFECFF87FF68FAE2FA8A0B69.taxon	description	(Fig. 3) http: // zoobank. org / urn: lsid: zoobank. org: act: B 24 F 7960 - 1110 - 4 DB 1 - 8606 - 48 BE 1 DB 8 BB 87	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFECFF87FF68FAE2FA8A0B69.taxon	materials_examined	Material. Observations on two live animals, whole mounted afterwards, one of which is designated holotype (FMNH https: // id. luomus. fi / KV. 609), the other in HU (X. 1.04), collected in Siboney (type locality) (December 14, 2017), sublittoral, fine-grained sand, 2 – 3 m depth, salinity 35 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFECFF87FF68FAE2FA8A0B69.taxon	etymology	Etymology. The epithet refers to the name given to the people that live in Santiago de Cuba, where the type locality is situated.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFECFF87FF68FAE2FA8A0B69.taxon	diagnosis	Diagnosis. Species of Cheliplana with the proboscis hooks 16 µm long, and the muscular supports 7 µm long. With two seminal vesicles. Copulatory bulb inverted pear shaped, 62 µm long. Ejaculatory duct constricted at its middle by a sphincter. Spiny cirrus 25 µm long, armed with fine spines about 0.5 µm long.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFECFF87FF68FAE2FA8A0B69.taxon	description	Description. Animals 0.7 – 0.8 mm long (n = 2) measured on the whole mounts, pinkish coloured, without eyes. Proboscis (Fig. 3 A & 3 D: pr, 3 B) with curved hooks (Fig. 3 B: h), each hook 16 µm long (n = 3); muscular hook supports (Fig. 3 B: ms) 6 – 8 µm long (x = 7 µm; n = 4). Pharynx (Fig. 3 A: ph) 1 / 8 of the body length, 124 – 126 µm long (n = 2) measured on the whole mounts, connected to the mouth (Fig. 3 A: m) by a long prepharyngeal cavity (two times the pharynx length) (Fig. 3 A: pph). Wall of the prepharyngial cavity with spines. Copulatory bulb (Fig. 3 C, 3 E) inverted pear shaped, 50 – 74 µm long (x = 62 µm; n = 2), comprising the prostate vesicle (Fig. 3 A, 3 C & 3 E: pv) and the cirrus. Ejaculatory duct constricted at its middle by a sphincter (Fig. 3 C: sph). Cirrus (Fig. 3 A, 3 C & 3 E: ci) 22 – 28 µm long (x = 25 µm; n = 2), armed with fine, 0.5 - µm-long spines. The vitellarium (Fig. 3 A: vi) extends between the pharynx and the copulatory bulb. Kidney-shaped ovary (Fig. 3 A: ov) (with the oocytes in a row, diminishing in diameter from the most distal to the most proximal end of the ovary) and bursa (Fig. 3 A: b) located caudally. Bursa connects to the common general atrium and also opens externally through a vagina (Fig. 3 A: va), which is situated posteriorly from the common gonopore (Fig. 3 A: cg).	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEDFF85FF68F8A3FA580BA5.taxon	description	(Fig. 4) http: // zoobank. org / urn: lsid: zoobank. org: act: 0 BC 1 AB 04 - AAD 1 - 46 E 4 - BB 15 - ECA 04 C 5 AAA 77	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEDFF85FF68F8A3FA580BA5.taxon	materials_examined	Material. Observations on two live animals, whole mounted afterwards, one of which is designated holotype (FMNH https: // id. luomus. fi / KV. 610), the other in HU (X. 1.05), collected in Bueycabón (type locality) (February 6, 2018), fine-grained sand with organic matter, 0.5 m depth, salinity 33 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEDFF85FF68F8A3FA580BA5.taxon	etymology	Etymology. The epithet refers to the fact that only one of the seminal vesicles seems to be functional, the second being atrophied and empty.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEDFF85FF68F8A3FA580BA5.taxon	diagnosis	Diagnosis. Species of Cheliplana with proboscis hooks 16 µm long and muscular supports 5 µm long. There are two seminal vesicles, one of which is atrophied. Copulatory bulb cylindrical and curved, 94 µm long and 16 µm wide. Cirrus unarmed, 31 µm long, distally widening. Bursa opens externally through a vagina.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFEDFF85FF68F8A3FA580BA5.taxon	description	Description. Animals 0.9 – 1 mm long (n = 2) measured on the whole mounts, pinkish coloured, without eyes. Proboscis (Fig. 4 B: pr, 4 C) with curved hooks 16 µm long (n = 2); muscular hook supports 5 µm long (n = 3). Phar- ynx (Fig. 4 A – B: ph) connects to the mouth through the prepharyngeal cavity (Fig. 4 B: pph); spiny prepharyngeal cavity twice as long as the pharynx. Testis located caudally from the pharynx. Atrial organs located in the caudal fourth of the body. Two seminal vesicles open proximally into the copulatory bulb; one seminal vesicle is functional (Fig. 4 D – E: fsv), filled with sperm, 116 – 119 µm long (x = 118 µm; n = 2), the other one seemingly atrophied (Fig. 4 D – E: asv), empty, 32 – 40 µm long (x = 36 µm; n = 2). The testis apparently is not connected to the atrophied seminal vesicle. Copulatory bulb (Fig. 4 A: cb, 4 E, 4 D) cylindrical and curved, 83 – 105 µm long (x = 94 µm; n = 2) and 14 – 17 µm wide (x = 16 µm; n = 2); it comprises the prostate vesicle (Fig. 4 D – E: pv), (an) accessory gland (s) (Fig. 4 D – E: ag) and the cirrus (Fig. 4 D – E: ci). Cirrus unarmed, 31 µm long (n = 2). It widens distally, where it is surrounded by longitudinal muscles. Bursa and ovary caudally from the copulatory bulb. Bursa connects to the common atrium and opens externally through a vagina. The vaginal opening (Fig. 4 F: va) is located posteriorly to the common gonopore (Fig. 4 F: cg).	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF8AFF68FF51FD050F2E.taxon	description	(Fig. 5) http: // zoobank. org / urn: lsid: zoobank. org: act: 2 FEAA 7 C 3 - F 447 - 4 B 35 - 8 FC 7 - 7 DD 2 FBAB 3 C 6 D	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF8AFF68FF51FD050F2E.taxon	materials_examined	Material. Observations on live animals, whole mounted afterwards. Two whole mounts from Bueycabón (type locality) (November 18, 2018), one of which is designated holotype (FMNH https: // id. luomus. fi / KV. 611), the other one reference material (HU X. 1.06), intertidal, upper 10 cm of the fine-grained sand, salinity 31 ‰. One whole mount from Las Sardinas (June 22, 2016), intertidal, upper 10 cm of fine-grained sand, salinity 33 ‰ (HU X. 1.07).	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF8AFF68FF51FD050F2E.taxon	etymology	Etymology. The epithet refers to the fact that the seminal duct opens into de copulatory bulb, a little bit distally from the latter’s proximal end.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF8AFF68FF51FD050F2E.taxon	diagnosis	Diagnosis. Species of Cheliplana with proboscis hooks 16 µm long and muscular hook supports 7 µm long. Seminal duct opens into the copulatory bulb, subterminally at the latter’s proximal end. At the same level, two separate ducts of unknown origin enter the prostate vesicle. The copulatory bulb ends in a sclerotized cap 16 µm long, which is asymmetrical distally. The spiny cirrus is 48 µm long. It is a narrow tube, widening slightly at the level of the distal cap. The spines are 3 µm long distally and 0.5 µm long in the widened part.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF8AFF68FF51FD050F2E.taxon	description	Description. Animals 0.4 – 0.7 mm long (x = 0.5 mm; n = 3), measured on the whole mounts, translucent, pinkish coloured, without eyes. Proboscis (Fig. 5 A: pr, 5 B) with curved hooks 13 – 18 µm long (x = 16 µm; n = 4); muscular hook supports 5 – 8 µm long (x = 7 µm; n = 4). Pharynx (Fig. 5 A: ph) 1 / 7 – 1 / 8 of the body length in live animals. Pharynx connects to the mouth via a long spiny prepharyngeal cavity (Fig. 5 A: pph), twice as long as the pharynx. Mouth (Fig. 5 A: m) opens ventrally, subterminally at the anterior body end. Testis (Fig. 5 A: t) located postero-laterally from the pharynx, connected to two seminal vesicles. Seminal vesicles (Fig. 5 A; C – E: sv) and atrial organs located in the last fourth of the body. Seminal vesicles distally fused to form a short seminal duct (Fig. 5 C: sd). Seminal duct opens into the copulatory bulb a bit distally from the latter’s proximal end. The copulatory bulb (Fig. 5 C – E) comprises the prostate vesicle and the spiny cirrus. Prostate vesicle (Fig. 5 A & 5 C – E: pv) with two proximal ducts (Fig. 5 C & 5 E: x), which enter the vesicle at the level of the entrance of the seminal duct. It is not clear where exactly these ducts come from (gland necks of the prostate glands?). Distally, the copulatory bulb ends in a sclerotized cap (Fig. 5 C – E: sc). Sclerotized cap distally asymmetric, 10 – 20 µm long (x = 16 µm; n = 3) and 6 – 10 µm at its widest point (x = 8 µm; n = 3). Spiny cirrus (Fig. 5 A, 5 C & 5 E: ci) 62 – 66 µm long (x = 64 µm; n = 2; measured from the most proximal spines to the most distal tip). In the distal portion of the cirrus, the cirrus widens a bit and the spines are 2 – 3 µm long (x = 3 µm; n = 12). In this part it is surrounded by a sclerotized cap. Proximally from this part, spines are very fine and less distinguishable, about 0.5 µm long. The vitellarium (Fig. 5 A: vi) extends between the pharynx and the copulatory bulb. Kidney-shaped ovary (Fig. 5 A: ov) (with the oocytes in a row, diminishing in diameter from the most distal one to the most proximal one) and bursa located caudally from the common gonopore.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF89FF68FA61FB020D5D.taxon	description	(Fig. 6) http: // zoobank. org / urn: lsid: zoobank. org: act: 0 F 9 C 72 C 8 - A 3 D 2 - 4 A 73 - 96 CC- 2085293 D 1841	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF89FF68FA61FB020D5D.taxon	materials_examined	Material. Observations on one live animal, whole mounted afterwards, designated holotype (FMNH https: // id. luomus. fi / KV. 612), collected in Bueycabón (type locality) (February 6, 2018), sublittoral, fine-grained sand with organic matter, 0.5 m depth, salinity 33 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF89FF68FA61FB020D5D.taxon	etymology	Etymology. The epithet refers to the fact that the epidermal glands resemble small warts.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF89FF68FA61FB020D5D.taxon	diagnosis	Diagnosis. Species of Cheliplana with the epidermis covered by glands that resemble warts, except in the posterior 20 % of the body. Proboscis hooks bifurcate at the tip; main hook 15 – 16 µm long, smallest hook 5 – 6 µm long, muscular hook supports 16 µm long. Spiny cirrus 28 µm long proximally and 9 µm wide distally, constricted in the middle (4 µm wide); proximal spines 8 µm long, distal ones 4 µm long.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE0FF89FF68FA61FB020D5D.taxon	description	Description. Live animal about 0.7 mm long, pinkish coloured, without eyes. Epidermis covered by warts-like glands (Fig. 6 A – D: w), except in the caudal 20 % of the body. Small rounded rhabdites visible over the entire body surface. Proboscis (Fig. 6 B & 6 D: pr, 6 E) with hooks bifurcate at the tip, forming a second small hook; main hook 15 – 16 µm long (n = 2), smallest hook 5 – 6 µm long (n = 2); muscular supports 15 – 17 µm long (x = 16 µm; n = 2). Measured on the live animal, pharynx (Fig. 6 A & 6 D: ph) 1 / 8 – 1 / 9 of the body length long, connected to the subterminal mouth (Fig. 6 D: m) by a long and spiny prepharyngeal cavity (Fig. 6 A – B & 6 D: pph) that is three times longer than the pharynx. Testis (Fig. 6 D: t) located ventro-laterally from the pharynx. Testis connected to a single seminal vesicle (Fig. 6 C – D & 6 F – G: sv), opening proximally into the copulatory bulb. Prostate glands (Fig. 6 D & 6 F – G: prg) enter the copulatory bulb about at the entrance of the seminal vesicle. Copulatory bulb inverted-pear shaped, 49 µm long, comprising the prostate vesicle (Fig. 6 C – D & 6 F – G: pv) and the spiny cirrus. Spiny cirrus (Fig. 6 C – D & 6 F – G: ci) 28 µm long, 9 µm wide proximally, narrower at about its midpoint (4 µm), subdistally 12 µm wide, and narrowing to a distal triangular-shaped tip; as a whole the cirrus is arrow-like. Spines largest in the proximal end, 7 – 9 µm long (x = 8 µm; n = 4) and distally 4 – 5 µm long (x = 4 µm; n = 5). Vitellarium (Fig. 6 D: vi) extends behind the pharynx to the beginning of the copulatory bulb. Ovary and globular bursa (Fig. 6 D: b) located caudally from the copulatory bulb. Ovary (Fig. 6 D: ov) kidney shaped, with the oocytes in a row, diminishing in diameter from the most distal to the proximal end of the ovary. Only a connection between the bursa to the common atrium was observed. Discussion on Cheliplana. All the above-mentioned species show the typical features of the genus (see de Beauchamp 1927; Schilke 1970 a): a proboscis consisting of two muscle bulbs (“ hook supports ”) with simple, curved hooks, and with soft, not-sclerotized sidepieces, a cylindrical (barrel-shaped) pharynx with a long, often spiny prepharyngeal cavity, and only one ovary. The specimen of C. asica collected in Cuba shows the diagnostic features of the species mentioned in the original description by Marcus (1952). Within the genus, an unarmed cirrus ending in a simple papilla as in C. asica is unique. The ejaculatory duct in the specimen from Cuba (170 µm) is shorter than it is in the specimens from Brazil (280 µm). As no other morphological differences between the specimens of both populations were observed, we consider both populations to belong to the same species. Cheliplana terminalis, primarily described as a subspecies of C. asica by Brunet (1968), can be distinguished from C. asica by the long sclerotized ejaculatory which ends in a sclerotized cap. This is clearly present in the specimens from Cuba. The specimens of C. terminalis from Cuba (0.5 – 0.9 mm long) are noticeably smaller than the specimens recorded from Marseille (1.6 mm long) (Brunet 1968), however, they are similar to the specimens from Somalia (about 1 mm long) (Schockaert 1982). Unfortunately, no measures of the copulatory organ of specimens from Marseilles, Somalia and Kenya are available. However, as there seem to be no morphological differences between the specimens from Cuba and the specimens from the other populations, we prefer to keep them provisionally in the same species.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE4FF8FFF68FF51FBF90AA8.taxon	description	(Fig. 7)	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE4FF8FFF68FF51FBF90AA8.taxon	materials_examined	Known distribution. Several localities in the Mediterranean: France (Brunet 1967); several localities in Sardinia (Italy) (Gobert et al. 2017). Lanzarote (Canary Islands) (Gobert et al. 2017). Possibly North Carolina, United States (Whitson et al. 2011). Material and distribution in Cuba. Three specimens studied alive and whole mounted (HU X. 1.08 – X. 1.10), collected in Siboney (September 4, 2016; December 14, 2017), sublittoral, fine-grained sand with organic matter, 0.7 – 2 m depth, salinity 32 – 35 ‰. Remarks. The live animals from Cuba are about 1.5 – 2 mm long, yellowish, without eyes. There is a pale belt near the posterior body end, corresponding to the single adhesive girdle. Proboscis (Fig. 7 A: pr, 7 B – C) symmetric to lightly asymmetric; largest lip 126 – 130 µm long (n = 2) and the smallest one 118 – 119 µm long (n = 2). Proboscis with paired fields of shark-tooth-shaped denticles situated along each proboscis lip, separated by a characteristic ‘ basal gap’ (see Brunet, 1967; Schilke 1970 a; Whitson et al. 2011; Gobert et al. 2017). In the basal half of the toothed belts, the denticles are 1 – 2 µm long (x = 1 µm; n = 23) and are more or less ordered in three or four rows; in the distal half the denticles appear a bit larger 1 – 2 µm long (x = 2 µm; n = 12) and are ordered in two rows. In live animals, polygonal glands were observed in the internal surface of the lips (Fig. 7 B: prg); the largest ones arranged in two rows on the central longitudinal axis of each lip. These larger glands are accompanied by smaller glands. None of these glands are observable on the whole mounts. Pharynx (Fig. 7 A: ph) located at 50 %, being about 7 % of the body length in live animals. Three pairs of testes (Fig. 7 A: t) are arranged in two rows in front of the pharynx. Copulatory bulb (Fig. 7 D) 63 – 119 µm long (x = 92 µm; n = 3); it comprises the prostate vesicle and the spiny cirrus. Prostate vesicle (Fig. 7 D: pv) 67 – 87 µm long (x = 77 µm; n = 2). Spiny cirrus (Fig. 7 D: ci) 26 – 35 µm long (x = 32 µm; n = 3), proximally 7 – 12 µm wide (x = 9 µm; n = 3) and distally 17 – 19 µm wide (x = 18 µm; n = 3).	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE5FF8CFF68FEC3FB2B09F5.taxon	description	(Fig. 8) http: // zoobank. org / urn: lsid: zoobank. org: act: 4 A 200176 - 9 D 9 C- 49 CF- 865 D-F 56 B 95 ACADD 3	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE5FF8CFF68FEC3FB2B09F5.taxon	materials_examined	Material. One specimen studied alive and whole mounted, designated holotype (FMNH https: // id. luomus. fi / KV. 613), from Siboney (type locality) (December 9, 2017), sublittoral, medium-grained clean sand, 4 m depth, salinity 33 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE5FF8CFF68FEC3FB2B09F5.taxon	etymology	Etymology. The epithet refers to the extinct Saber-tooth tigers Smilodon spp. (Mammalia), as the new species has some large denticles on the proboscis.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE5FF8CFF68FEC3FB2B09F5.taxon	diagnosis	Diagnosis. Species of Carcharodorhynchus with symmetric proboscis, lips 127 µm long. The belts of denticles show a ‘ basal gap’; denticles shark-tooth shaped, 2 µm long in the basal half of the belts, ordered in four rows, and 5 µm long in the distal half, ordered in a single row. Spiny cirrus 33 µm long.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE5FF8CFF68FEC3FB2B09F5.taxon	description	Description. Live animal about 2 mm long, yellowish, caudally dark yellow-brownish, without eyes. There is a pale belt near the posterior body end, corresponding to the single adhesive girdle. Proboscis lips symmetric, 127 µm long. Proboscis (Fig. 8 A: pr, 8 B – C) with paired fields of shark-tooth-shaped denticles, situated on a belt on each proboscis lip. Denticles at the base of the proboscis separated by a ‘ basal gap’. In the basal half of the toothed belts, the denticles are 1 – 2 µm long (x = 2 µm; n = 17) and are ordered in four to five rows. More distally there is only one row of 4 – 6 - µm-long denticles (x = 5 µm; n = 12). In live animals, polygonal glands are present on the internal surface of the lips. The largest of the glands are arranged into two rows following the central longitudinal axis of each lip. At both sides of the large glands, smaller glands can be observed. These glands are not observable on the whole mounts. Pharynx 133 µm in diameter, located at 60 %. Testes not observed. A pair of elongated seminal vesicles open proximally into the copulatory bulb. Copulatory bulb (Fig. 8 D – E) 162 µm long, with the same construction as that of C. flavidus; it comprises the very large prostate vesicle (Fig. 8 D – E: pv) and the spiny cirrus. Spiny cirrus (Fig. 8 D – F: ci) 33 µm long, proximally 9 µm wide and distally 16 µm wide, with the same morphology as that of C. flavidus, including the detailed morphology and dimensions of the spines (see Brunet 1967). Paired vitellaria extend between the brain (Fig. 8 A: br) and the copulatory bulb. Bursa and ovaries (Fig. 8 E – F: ov) are situated just caudally from the copulatory bulb. A single oocyte was observed in each ovary.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE6FF8CFF68FC1DFDE10DA9.taxon	description	(Fig. 9) http: // zoobank. org / urn: lsid: zoobank. org: act: 01734072 - BF 6 B- 4 DAD- 98 DD-C 4 BD 54 A 2 B 471	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE6FF8CFF68FC1DFDE10DA9.taxon	materials_examined	Material. One specimen studied alive and whole mounted, designated holotype (FMNH https: // id. luomus. fi / KV. 614), collected in Bueycabón (type locality) (May 25, 2018), sublittoral, fine-grained sand with organic matter, 0.5 m depth, salinity 35 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE6FF8CFF68FC1DFDE10DA9.taxon	etymology	Etymology. The epithet refers to the fact that the copulatory bulb ends in an unarmed papilla.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE6FF8CFF68FC1DFDE10DA9.taxon	diagnosis	Diagnosis. Species of Carcharodorhynchus with symmetric proboscis, lips 145 µm long. The belts of denticles show a ‘ basal gap’; denticles shark-tooth shaped, 0.9 µm long in the basal half of the belts and 3 µm long in the distal half. A single seminal vesicle opens into the copulatory bulb. Copulatory bulb 102 µm long and 29 µm at the widest point, without hard structures, distally ending in a muscular penis papilla.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE6FF8CFF68FC1DFDE10DA9.taxon	description	Description. Live animal about 2 mm long, yellowish, without eyes. Proximal end of the body uncoloured. There is a pale belt near the posterior body end, corresponding to the single adhesive girdle. Proboscis symmetric, 145 µm long. Proboscis (Fig. 9 A – B: pr, 9 C) with paired fields of shark-tooth-shaped denticles on each proboscis lip. Toothed belts from both lips separated by a ‘ basal gap’. In the basal half of the toothed belts, the denticles are 0.6 – 1 µm long (x = 0.9 µm; n = 20) and are ordered in five to six rows. In the distal half the teeth are 3 – 4 µm long (x = 3 µm; n = 26) and are ordered in two to three rows. In live animals, polygonal glands are present on the internal surface of the lips. The largest of the glands are arranged into two rows following the central longitudinal axis of each lip. At both sides of the large glands, smaller glands can be observed. These glands are not observable on the whole mounts. Pharynx (Fig. 9 A: ph) 95 µm in diameter, located at 75 %. A pair of testes is located rostrally from the pharynx. The vasa deferentia (Fig. 9 F: vad) open separately into a single seminal vesicle (Fig. 9 E: sv), which itself opens proximally into the copulatory bulb. Copulatory bulb (Fig. 9 A: cb, 9 D – F) 102 µm long and 29 µm at the widest point, without hard structures, ending in a muscular papilla. The prostate vesicle is short and rounded. Two types of prostate secretions were observed in the prostate vesicle of the live animal (Fig. 9 D – E: pv): in the proximal third a fine-grained secretion and in the middle third a coarsegrained secretion. Distal third of the copulatory bulb muscular, forming a penis papilla (Fig. 9 D – F: pp). Paired vitellaria extend between the brain (Fig. 9 A: br) and the copulatory bulb. Ovaries and bursa located caudally from the common gonopore.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE7FF93FF68F88EFC6C09D1.taxon	description	(Fig. 10) http: // zoobank. org / urn: lsid: zoobank. org: act: D 32 E 2 CF 9 - 4285 - 4535 - B 79 C- 8 C 1 DD 6 ACA 8 EB	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE7FF93FF68F88EFC6C09D1.taxon	materials_examined	Material. Observations on live animals, whole mounted afterwards. Three whole mounts from Siboney (type local- ity) (February 7 & May 15, 2016; April 4, 2017), one of which is designated holotype (FMNH https: // id. luomus. fi / KV. 615), the others in HU (X. 1.11 – X. 1.12), one specimen collected in fine-grained sand, 0.2 m depth; the second one in the intertidal, upper 20 cm of coarse-grained sand; and the third one on Ulva lactuca, 0.3 m depth, salinity 34 – 35 ‰. One whole mount from Macabí (April 23, 2017) (HU X. 1.13), intertidal, upper 10 cm of fine-grained sand, salinity 34 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE7FF93FF68F88EFC6C09D1.taxon	etymology	Etymology. The epithet refers to the fact that the cirrus is armed with long spines.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE7FF93FF68F88EFC6C09D1.taxon	diagnosis	Diagnosis. Species of Carcharodorhynchus with proboscis asymmetric; largest lip 87 µm long and the smallest 70 µm. Inner side of both lips covered with small denticles. Largest lip with about 4 – 6 rows of denticles, smallest one with 2 – 3 rows of denticles. Belts of denticles continuous between both lips. The denticles on the largest lip are about 0.3 µm long in the proximal third, and 0.6 µm in the middle and distal thirds. On the smallest lip the ± 0.6 - µmlong denticles are located in the proximal and the middle third. Cirrus 50 µm long, armed with long spines, 23 µm long in the proximal two-thirds of its length and 5 µm long in the distal third. The largest spines bear a proximal small tooth in their middle.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFE7FF93FF68F88EFC6C09D1.taxon	description	Description. Living animals slender, 1 – 1.5 mm long, 0.6 – 1.5 mm long in the whole mounts (x = 1 mm; n = 4), yellow, without eyes. Epidermis opaque, thick and hampering the study of the internal morphology on live animals. Proboscis (Fig. 10 A: pr, 10 B – C) with asymmetric lips; largest lip 82 – 90 µm long (x = 87 µm; n = 3) and the smallest 68 – 73 µm long (x = 70 µm; n = 3). The inner side of the largest lip is covered by 4 – 6 rows of denticles from its most basal part towards the distal tip, leaving only the distal 20 % without denticles. These denticles are ± 0.3 µm long in the basal third and ± 0.6 µm long over the distal two-thirds. The inner side of the smallest lip is covered by 2 – 3 rows of denticles from its most basal part towards its middle third, leaving the distal ± 30 % without denticles; these denticles are equal in size, ± 0.6 µm long. The belts of denticles are continuous between the lips. In live animals, spherical to oval-shaped glands (Fig. 10 B: prg) were observed on the inner surface of the lips. Pharynx (Fig. 10 A & 10 D: ph) located at 70 %, 94 – 129 µm in diameter (x = 107 µm; n = 3). Testes were observed only in one specimen (Macabí). There is one pair, which is located rostrally from the pharynx. Two large seminal vesicles (Fig. 10 D: sv) open separately into the copulatory bulb. Copulatory bulb (Fig. 10 A: cb, 10 D – F) situated just caudally from the pharynx, 80 – 94 µm long, comprising the prostate vesicle (Fig. 10 D: pv) and the armed cirrus. Cirrus (Fig. 10 D: ci, 10 E – F) 48 – 53 µm long (x = 50 µm; n = 4), armed with 21 – 25 - µm-long spines in its proximal two-thirds (x = 23 µm; n = 6), 3 – 6 - µm-long in its distal third (x = 5 µm; n = 8). The largest spines show a small tooth more or less in their middle (Fig. 10 E – F: to). The paired vitellaria extend at both sides of the body from just behind the brain to the distal body third. Globular bursa located caudally from the copulatory bulb. Ovaries not observed.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF9FF96FF68FC26FD3A0B69.taxon	description	(Fig. 11) http: // zoobank. org / urn: lsid: zoobank. org: act: D 3 B 6 D 290 - 80 A 3 - 44 F 8 - 99 CA-F 7 CC 6 CC 66 BF 8	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF9FF96FF68FC26FD3A0B69.taxon	materials_examined	Material. Observations on live animals, whole mounted afterwards. One whole mount from Bueycabón (type locality) (November 18, 2018), designated holotype (FMNH https: // id. luomus. fi / KV. 616), intertidal, upper 10 cm of fine-grained sand, salinity 31 ‰. Five whole mounts from El Masío (June 30, 2016) (HU X. 1.14 – X. 1.18), intertidal, upper 10 cm of medium-grained sand, salinity 33 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF9FF96FF68FC26FD3A0B69.taxon	etymology	Etymology. Species named in tribute to the autochthonous populations (named “ nativos ” in Spanish) who dwelled around the distribution area of the new species before, and few years after the discovery of Cuba by Christopher Columbus.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF9FF96FF68FC26FD3A0B69.taxon	diagnosis	Diagnosis. Species of Carcharodorhynchus with asymmetric proboscis; largest lip 119 µm long and smallest 95 µm long. In the smallest lip, the denticles are 1 – 2 µm long, ordered in four rows. In the largest lip, the denticles are 0.3 – 0.5 µm long in the basal half, ordered in six to seven rows, and 1 – 2 µm long in the distal half, ordered in four to six rows. Spiny cirrus 45 μm long; densely covered with small spines, which are 3 µm long proximally, 6 µm in the midpart, and 9 µm distally.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF9FF96FF68FC26FD3A0B69.taxon	description	Description. Live animals slender, 1 – 1.5 mm long, light-brown to orange-brown, without eyes. There is a pale belt near the posterior body end, corresponding to the single adhesive girdle. Epidermis opaque, thick, hampering the study of the internal morphology on live animals. Proboscis (Fig. 11 A: pr, 11 B – C) asymmetric: largest lip 105 – 146 µm long (x = 119 µm; n = 3), smallest 85 – 112 µm long (x = 95 µm; n = 3). In the smallest lip, denticles are 1 – 2 µm long, ordered in four rows. In the largest lip, denticles are 0.3 – 0.5 µm long in the basal half, ordered in six to seven rows, and 1 – 2 µm long in the distal half, ordered in four to six rows. The toothed belts are continuous between both lips. In live animals, spherical to oval-shaped glands (Fig. 11 B: prg) were observed along the internal surface of the lips. Pharynx (Fig. 11 A: ph) 64 – 142 µm in diameter (x = 100 µm; n = 3), located at 60 %. Several diatoms were observed in the gut. Testes were observed only in one specimen (Bueycabón). There is one pair, which is located rostrally from the pharynx. Copulatory bulb (Fig. 11 A: cb, 11 D – E) located caudally from the pharynx. Two elongated seminal vesicles (Fig. 11 D – E: sv) narrow towards the copulatory bulb, which they enter separately. Elongated copulatory bulb 86 – 101 μm long (x = 92 µm; n = 3), comprising the prostate vesicle and the spiny cirrus. Prostate vesicle (Fig. 11 D – E: pv) spherical, 31 – 37 μm long (x = 35 µm; n = 3). At the place where the seminal vesicles enter the prostate vesicle, two small vesicles (Fig. 11 E: ev) can be observed, which are the necks of prostate glands. Spiny cirrus (Fig. 11 D – E: ci) 46 – 48 μm long (x = 45 µm; n = 3) and 9 – 10 μm wide proximally (n = 2). Spines densely packed together. Proximally the spines are 2 – 3 µm long (x = 3 µm; n = 10), in the middle part 5 – 7 µm (x = 6 µm; n = 10), and distally 8 – 10 µm (x = 9 µm; n = 10). Distally from the cirrus, the copulatory bulb continues as a long and nar- row male atrium (Fig. 11 E: ma) towards the common genital atrium. Paired vitellaria lie at both body sides, between the brain and the copulatory bulb. Globular bursa located caudally from the copulatory bulb. Globular ovaries located caudally from the bursa. Discussion on Carcharodorhynchus. The new species from Cuba can easily be attributed to Carcharodorhynchus as they show all diagnostic features of the genus. Species of that genus all have a proboscis consisting of two sturdy lips that bear belts of small teeth (= denticles) at their inner surface, and have two ovaries, whereas most other schizorhynchs only have one (Meixner 1938; Ax 1951; Schilke 1970 a; Reygel et al. 2014). All species have a very similar habitus and internal organisation, and can mainly be distinguished from each other based on details in the structure of the proboscis (symmetric or asymmetric), the shape and organisation of the proboscis denticles, and the morphology of the copulatory organ proper. Seventeen species of Carcharodorhynchus have been described, only one of which (C. flavidus) was described with a proboscis with separated belts of teeth; i. e. the rows of teeth of the ventral and dorsal lip are separated from each other by an area lacking teeth at the place where the two lips join each other (see Brunet, 1967). This characteristic “ basal gap ” is also seen in two of the new species: C. smilodon sp. n. and C. papillaris sp. n.. Our examination of the specimen of C. polyorchis L’Hardy, 1963 deposited in the SMNH (Nr. 54059) clearly shows that also in this species this ‘ basal gap’ is present, a fact never mentioned in literature. As such, the four species mentioned are clearly different from all other species of Carcharodorhynchus. The subtle differences distinguishing C. polyorchis and C. flavidus pertain to the presence / absence of an adhesive belt, the presence / absence of pigment grains in the epidermis and details in the male genital system, and are discussed by Brunet (1967). The length of the cirrus in the specimens of C. flavidus collected in Cuba (26 – 35 µm) clearly fits the range provided by Brunet (1967) (15 – 39 µm), as did that of the populations recorded from North Carolina (19 – 22 μm; Whitson et al. 2011), Lanzarote (26 – 67 μm; Gobert et al. 2017) and from Sardinia (30 – 34 μm; Gobert et al. 2017). Whether the different populations represent a complex of ‘ cryptic’ species or whether C. flavidus is a very wide-spread species remains enigmatic. Carcharodorhynchus smilodon sp. n. and C. papillaris sp. n. resemble C. flavidus most as they both lack pigment granules, possess an adhesive belt near the caudal end, and have long-drawn seminal vesicles (in C. smilodon sp. n.). Carcharodorhynchus smilodon sp. n. is extremely similar to C. flavidus, and can mainly be distinguished from that species by the dimensions of the denticles on the proboscis belts. Carcharodorhynchus smilodon sp. n. has denticles of 2 µm long at the base of the lips, whereas the most distal ones are ± 5 µm long (up to 6 µm long for the largest ones). In C. flavidus, denticles are at most 3 µm long, and are more or less of the same length over the entire length of the proboscis lips, without large size differences.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF9FF96FF68FC26FD3A0B69.taxon	description	Carcharodorhynchus papillaris sp. n. can easily be distinguished from C. flavidus, as well as from all other species of Carcharodorhynchus as it is the only representative of Carcharodorhynchus with a single seminal vesicle and a copulatory bulb without any hard structures. All other species show a stylet, a spiny cirrus, or a combination of both. Carcharodorhynchus spiniferus sp. n. and C. nativus sp. n. both have a cirrus only. Carcharodorhynchus spiniferus sp. n. differs from all the other species in that the cirrus is armed with large, up to 23 - µm-long spines proximally, and much shorter spines distally. In all other species with an armed cirrus the spines are more or less equally long over the entire length of the cirrus (except for C. nativus sp. n.; see further), and never as long as 25 µm. Moreover, the tooth that each of the larger spines in the cirrus of C. spiniferus sp. n. shows is a unique feature within the genus.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFCFF97FF68FE61FBEE09D1.taxon	description	(Fig. 12 A – B, 15 E) http: // zoobank. org / urn: lsid: zoobank. org: act: 2 CF 67117 - 9665 - 4779 - 96 D 4 - 2 B 0 A 4272 D 392	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFCFF97FF68FE61FBEE09D1.taxon	materials_examined	Material. One specimen studied alive and whole mounted, designated holotype (FMNH https: // id. luomus. fi / KV. 617), collected in Bueycabón (type locality) (February 21, 2018), sublittoral, fine-grained sand with organic matter, 0.5 m depth, salinity 33 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFCFF97FF68FE61FBEE09D1.taxon	etymology	Etymology. Species dedicated to Prof. Em. Dr. José Espinosa Sáez (Instituto de Ciencias del Mar, La Habana, Cuba), specialist in ecology and taxonomy of molluscs, and awarded with the National Award of Marine Sciences of Cuba (2018).	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFCFF97FF68FE61FBEE09D1.taxon	diagnosis	Diagnosis. Species of Schizochilus with a spiny cirrus 71 μm long; spines talon-shaped, about 3 μm long. A 52 - μm-long, needle-shaped stylet runs centrally through the cirrus. Copulatory bulb distally forming a 12 - μm-long cap.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFCFF97FF68FE61FBEE09D1.taxon	description	Description. Animal 0.9 mm long, measured on the whole mount, translucent, without eyes. Proboscis lips (Fig. 12 A: pr) 77 – 92 μm long (x = 85 μm; n = 2), with a pair of caudal glands. Pharynx (Fig. 12 A: ph) 72 μm in diameter, located at 70 %. Four testes (Fig. 12 A: t) lie in a row rostrally from the pharynx, fused two by two into two pairs. Copulatory bulb (Fig. 12 A: cb, 15 E) 77 μm long, comprising the prostate vesicle and the spiny cirrus. The cirrus is 71 μm long and 6 μm wide, measured over its midlength. The spines are talon-shaped and about 2 – 3 μm long (x = 3 μm; n = 2). A 52 - µm-long stylet (Fig. 12 B) runs centrally through the cirrus. It is 6 μm wide proximally, needle shaped, and tapers to a distal sharp point. The copulatory bulb forms a distal sclerotized cap of 12 μm long and 9 μm wide at the widest point. As such, it surrounds the cirrus for 23 % of the latter’s length. The common gonopore (Fig. 12 A: cg) opens at 90 %. A pair of vitellaria (Fig. 12 A: vi) extend between the brain (Fig. 12 A: br) and the copulatory bulb, one vitellarium at each side of the body. A bursa (Fig. 12 A: b) and ovary (Fig. 12 A: ov) are located in the caudal body end. The uterus (Fig. 12 A: ut) is directed forwards, situated beside the copulatory bulb.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF97FF68FC26FBFA0D56.taxon	description	(Fig. 12 C – D, 15 A – B) http: // zoobank. org / urn: lsid: zoobank. org: act: 7 C 16446 E- 7 CE 1 - 40 F 9 - 8786 - 171035 B 7 C 507	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF97FF68FC26FBFA0D56.taxon	materials_examined	Material. Observations on live animals, whole mounted afterwards. Four whole mounts from Macabí (type locality) (April 23, 2017), one of which is designated holotype (FMNH https: // id. luomus. fi / KV. 618), the other material in HU (X. 1.19 – X. 1.21), intertidal, upper 10 cm of fine-grained sand, salinity 34 ‰. Two whole mounts from Siboney (April 4, 2017) (HU X. 1.22 – X. 1.23), intertidal, upper 10 cm of fine-grained sand, salinity 34 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF97FF68FC26FBFA0D56.taxon	etymology	Etymology. The epithet refers to the fact that the species was found at the Atlantic coast of Cuba.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF97FF68FC26FBFA0D56.taxon	diagnosis	Diagnosis. Species of Schizochilus with a spiny cirrus; fine spines about 1.5 μm long. A straight, tubular, ± 39 - µm-long stylet is present in the cirrus. Copulatory bulb with a distal cap of ± 19 μm long.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF97FF68FC26FBFA0D56.taxon	description	Description. Live animals about 1 – 1.5 mm long, translucent, without eyes. Habitus and internal organisation as in S. espinosai sp. n.. Proboscis lips 162 – 184 μm long (x = 176 μm; n = 12), with a pair of gland sacs that enter the proboscis at its proximal end. Pharynx 141 – 172 μm in diameter (x = 162 μm; n = 5), located at 70 %. Four (in the specimens from Macabí) to five or six (in the specimens from Siboney) oval- to kidney-shaped testes lie in a single row rostrally from the pharynx. Two vitellaria extend between the brain and the copulatory bulb, one at each side of the body. The rest of the genital organs are situated in the caudal fourth of the body, with the ovary and the bursa near to the caudal body end. Copulatory bulb 81 – 131 μm long (x = 107 μm; n = 6), com- prising the prostate vesicle and a spiny cirrus. Cirrus (Fig. 12 C – D, 15 A – B) ornamented with 0.5 – 1.8 - μm-long fine spines (x = 1.2 μm; n = 30). A tubular stylet (Fig. 12 C – D, 15 A – B) lies centrally in the cirrus. Cirrus and stylet are 34 – 43 μm long (x = 39 μm; n = 6) and proximally 5 – 7 μm wide (x = 6 μm; n = 6). The distal walls of the copula- tory bulb are sclerotized, forming a 13 – 24 - μm-long cap (x = 19 μm; n = 6) that is 9 – 14 μm at the widest point (x = 11 μm; n = 6). As such it surrounds the cirrus for 38 – 56 % of the latter’s length.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF94FF68F8BAFB720885.taxon	description	(Fig. 12 G, 15 C) http: // zoobank. org / urn: lsid: zoobank. org: act: 8 B 63964 A-DB 9 B- 4 BE 3 - A 0 EC- 07176 AD 0 F 423	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF94FF68F8BAFB720885.taxon	materials_examined	Material. Observations on one live animal, whole mounted afterwards, designated holotype (FMNH https: // id. luomus. fi / KV. 619), collected in Playa Morales (type locality) (January 4, 2017), intertidal, upper 10 cm of finegrained sand, salinity 35 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF94FF68F8BAFB720885.taxon	etymology	Etymology. The epithet refers to its occurrence in Banes, area of the type locality.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF94FF68F8BAFB720885.taxon	diagnosis	Diagnosis. Species of Schizochilus with a spiny cirrus, covered with fine spines of ± 2 μm long. A needle-shaped, 70 - μm-long stylet runs centrally through the cirrus. Copulatory bulb with a 32 - µm-long sclerotized distal cap.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFDFF94FF68F8BAFB720885.taxon	description	Description. Live animal about 1.5 mm long, translucent, without eyes. Habitus and internal organisation as in S. espinosai sp. n.. Proboscis lips 279 μm long (n = 2). Pharynx 226 μm in diameter, located at 75 %. Two vitellaria extend between the brain and the copulatory bulb, one at each side of the body. The rest of the genital organs are situated in the caudal fourth of the body, with the ovary and the bursa near to the caudal body end. Two long testes are located laterally between the brain and the pharynx, one on each body side. Seminal vesicles open proximally into the copulatory bulb. Copulatory bulb 144 μm long, comprising the prostate vesicle and the cir- rus. Cirrus (Fig. 12 G, 15 C) 70 μm long and ± 8 μm wide, armed with fine spines that are 1.7 – 2.3 μm long (x = 2 μm; n = 9). A stylet (Fig. 12 G, 15 C) lies centrally in the cirrus. It is slightly curved in the live animal; more curved in the whole mount (probably because of the squeezing). It is 70 μm long and 8 μm wide proximally, needle shaped, taper- ing to a distal sharp tip. The distal walls of the copulatory bulb are sclerotized, forming a 32 - μm-long cap, which is 13 μm wide at the widest point. As such, it surrounds the cirrus for 46 % of the latter’s length.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF94FF68FC8DFF060C59.taxon	description	(Fig. 12 E – F, 14 C, 15 D) http: // zoobank. org / urn: lsid: zoobank. org: act: 2362 B 7 AC-F 4 D 5 - 45 CA- 8 C 70 - 29 AADD 5 E 3 DB 4	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF94FF68FC8DFF060C59.taxon	materials_examined	Material. Observations on live animals, whole mounted afterwards. Four whole mounts from Bueycabón (type locality) (November 18, 2017), one of which designated holotype (FMNH https: // id. luomus. fi / KV. 620), other materials in HU (X. 1.24 – X. 1.26), intertidal, upper 10 cm of fine-grained sand, salinity 31 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF94FF68FC8DFF060C59.taxon	etymology	Etymology. The epithet refers to its occurrence in Bueycabón, the type locality of the new species.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF94FF68FC8DFF060C59.taxon	diagnosis	Diagnosis. Species of Schizochilus with a spiny cirrus 37 μm long, armed with fine spines ± 0.5 μm long. Tubular stylet lying inside the cirrus, ± 31 μm long, with an oblique distal end. Copulatory bulb without a distal sclerotized cap.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF94FF68FC8DFF060C59.taxon	description	Description. Animals 1 – 1.5 mm (x = 1.3 mm; n = 3), measured on whole mounts, translucent, without eyes. Habitus and internal organisation as in S. espinosai sp. n.. Proboscis lips 140 – 189 μm long (x = 162 μm; n = 8), with a pair of caudal glands. Pharynx 125 – 201 μm in diameter (x = 154 μm; n = 4), located at 70 %. Copulatory bulb (Fig. 14 C, 15 D) 84 – 104 μm long (x = 97 μm; n = 4), comprising the prostate vesicle and the spiny cirrus. The cirrus is 32 – 41 μm long (x = 37 μm; n = 4) and 4 – 7 μm wide proximally (x = 5 μm; n = 4), mea- sured over its midlength. The spines are very fine and ± 0.5 μm long. A tubular stylet (Fig. 12 E – F, 14 C, 15 D) runs centrally through the cirrus. It is 27 – 33 μm long (x = 31 μm; n = 4) and 5 – 7 μm wide proximally (x = 6 μm; n = 4). It has an oblique distal end. In two specimens, including the holotype, the stylet is constricted just distally from the proximal funnel-shaped end of the stylet. The distal wall of the copulatory bulb is not sclerotized, and does not form a cap.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF9BFF68F949FD9D0968.taxon	description	(Fig. 13, 14 A – B) http: // zoobank. org / urn: lsid: zoobank. org: act: 23613044 - 29 FD- 45 CF-A 694 - B 984 B 0164 D 12	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF9BFF68F949FD9D0968.taxon	materials_examined	Material. Observations on live animals, whole mounted afterwards. Six whole mounts from Siboney (type locality) (February 7, 2016), one of which is designated holotype (FMNH https: // id. luomus. fi / KV. 621), the others in HU (X. 1.27 – X. 1.31), intertidal, upper 20 cm of the fine-grained sand, salinity 35 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF9BFF68F949FD9D0968.taxon	etymology	Etymology. The epithet reflects the fact that the bases of the cirrus spines together have the appearance of a honeycomb. Lat. favus: honeycomb.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF9BFF68F949FD9D0968.taxon	diagnosis	Diagnosis. Species of Schizochilus with a single large testis rostrally from the pharynx. Spiny cirrus 37 μm long; spines about 2 μm long in the proximal half of the cirrus and 7 μm long in the distal half. The bases of the spines are arranged in such a way that in the live animal they have the appearance of a honeycomb. Inside the cirrus a ± 36 - μm-long stylet is present. Copulatory organ without a distal cap.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFFEFF9BFF68F949FD9D0968.taxon	description	Description. Live animals about 1 – 1.5 mm long, 0.6 – 1.4 mm long in the whole mounts (x = 1 mm; n = 5), translucent, without eyes. Habitus and internal organisation as in S. espinosai sp. n.. Proboscis (Fig. 13 A: pr) 84 – 88 μm long (x = 86 μm; n = 6), with a pair of gland sacs (Fig. 13 A: pg) that enter the proboscis at its proximal end. Rostrally from the proboscis, in the proximal tip of the body, a pair of brownish-pink glands (Fig. 13 A: gl) can be found, one on each body side. The brain (Fig. 13 A: br) is located caudally from the proboscis. Pharynx (Fig. 13 A – B: ph) has a diameter of 93 – 98 μm (x = 96 μm; n = 4), and is located at 70 %. A large testis, up to 272 μm long in one whole mount (Fig. 13 A – B: t), is located rostrally from the pharynx. Two vitellaria (Fig. 13 A – B: vi) extend between the brain and the copulatory bulb, one at each side of the body. The rest of the genital organs are situated in the caudal fourth of the body, with the ovary and the bursa near to the caudal body end. Copulatory bulb (Fig. 13 A: cb, 14 A – B) comprising the prostate vesicle and a spiny cirrus. Spiny cirrus (Fig. 13 B: ci, 13 C – F, 14 A – B) 34 – 38 μm long (x = 37 μm; n = 5) and 9 – 11 μm wide (x = 10 μm; n = 5). In the proximal half of the cirrus, the spines are about 2 μm long (n = 18); in the distal half they are 5 – 12 μm long (x = 7 μm; n = 12). The spines are arranged in such a way, that their bases together form a honeycomb-like struc- ture (see Fig. 13 C), mainly in the distal half of the cirrus. Inside the cirrus lies a tubular stylet, 35 – 37 μm long (x = 36 μm; n = 2) and 8 – 12 μm wide proximally (x = 10 μm; n = 4). This stylet bears longitudinal ridges (see Fig. 13 D, 14 A). In general the stylet is not well visible because the spines hamper observation. Often only the proximal part is visible, as shown in Fig. 14 A. The copulatory bulb does not form a sclerotized cap surrounding its distal tip. The common gonopore opens at 90 %.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF1FF99FF68FCA7FDB20E9D.taxon	description	(Fig. 12 H, 15 F) http: // zoobank. org / urn: lsid: zoobank. org: act: 471 E 20 E 5 - 1 C 96 - 4 EC 0 - A 164 - DEE 5 E 3 FAE 86 C	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF1FF99FF68FCA7FDB20E9D.taxon	materials_examined	Material. One specimen studied alive and whole mounted, designated holotype (FMNH https: // id. luomus. fi / KV. 622), collected in Siboney (type locality) (February 7, 2016), fine-grained sand with small stones and silt, 0.5 m depth, salinity 35 ‰.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF1FF99FF68FCA7FDB20E9D.taxon	etymology	Etymology. The epithet refers to the fact that the new species has the largest cirrus and stylet among all the known species of the genus.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF1FF99FF68FCA7FDB20E9D.taxon	diagnosis	Diagnosis. Species of Schizochilus with a cirrus 129 μm long, unarmed in the proximal fourth of its length, ornamented with fine spines in the rest of its length; spines 3 μm long. Needle-shaped stylet 120 μm long, running centrally through the cirrus. Copulatory bulb with a distal cap, 19 μm long.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF1FF99FF68FCA7FDB20E9D.taxon	description	Description. Live animal about 2 mm long, translucent, without eyes. Habitus and internal organisation as in S. espinosai sp. n.. Proboscis lips 70 μm long, representing 3,5 % of the body length in the live animal, with a pair of glands caudally. Pharynx located at the 75 %, impossible to measure in the whole mount. Copulatory bulb (Figs 12 H, 15 F) located caudally from the pharynx; it comprises the prostate vesicle and a spiny cirrus. The cirrus is 129 μm long, 7 μm wide proximally and 6 μm wide distally, unarmed in the proximal fourth of its length, the rest of the length is ornamented with fine spines. These spines are 2 – 4 μm long (x = 3 μm; n = 9). A 120 - μm-long stylet lies centrally in the cirrus. It is needle-shaped, 5 μm wide proximally, 2 μm wide at the base of the proximal funnel, gradually tapering towards its sharp distal tip. Distal wall of the copulatory bulb sclerotized, forming a 19 - μm-long cap. As such, it surrounds the cirrus for 15 % of the latter’s length. Testes and female system not observed.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF1FF99FF68FCA7FDB20E9D.taxon	discussion	Discussion on Schizochilus. All new species described show the diagnostic features of the genus Schizochilus (see Boaden 1963; Gobert et al. 2017): symmetrical proboscis without any hard structures; pharynx situated in the posterior body half; a single ovary; several testes before the pharynx in a single row, often merged into a single or a few larger lobed testes; a copulatory organ proper consisting of a spiny cirrus, sometimes supplemented with a central stylet. Up to now, eleven species of Schizochilus have been described (Tyler et al. 2006 – 2018 b). Of these eleven species, eight have a copulatory organ proper consisting of a spiny cirrus surrounding a central stylet, as is the case in all six new species described in this contribution: S. bruneti Noldt & Hoxhold, 1984, S. caecus L’Hardy, 1963, S. choriurus Boaden, 1963, S. hoxholdi Karling, 1989, S. lanzarotensis Gobert, Reygel & Artois, 2017, S. parvulus Brunet, 1970, S. santacruzensis Noldt & Hoxhold, 1984, and S. tubulatus Brunet, 1970. An overview of the distinguishing characters among these known species is provided by Gobert et al. (2017).	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
ED01879AFFF1FF99FF68FCA7FDB20E9D.taxon	description	Schizochilus bueycabonensis sp. n. can easily be recognized from S. lanzarotensis by the detailed morphology of the stylet and the cirrus. In S. bueycabonensis sp. n. the stylet is tubular, with a proximal funnel, 31 μm long, and has an oblique distal end. The cirrus of this species is armed over its entire length with fine, 0.5 - µm-long spines. By studying the holotype of S. lanzarotensis for sake of detailed comparison, we noticed that the measurements for this species in Gobert et al. (2017) were erroneous, most probably because of a scale conversion mistake, and hence we provide new measurements for this species. In S. lanzarotensis, the stylet (Fig. 14 D) is 80 μm long. It lacks the proximal funnel, and tapers to a distal sharp tip, and is therefore clearly distinguishable from this of S. bueycabonensis sp. n. The cirrus of the latter species is ornamented with two groups of shark-tooth-shaped spines: the smaller spines (3 – 5 μm long) proximally, and the larger ones (8 – 10 μm long) distally. Schizochilus favus sp. n. can be distinguished from S. lanzarotensis, as well as from all other representatives of Schizochilus because it is the only species in which the spines are arranged in a way that the bases form a honeycomb structure in the right focal plane. Also the stylet is typical of this is species, lacking a proximal funnel and with longitudinal ridges, the latter also being a unique character for this species. The general morphology of the cirrus and the stylet of S. atlanticus sp. n. is similar to that of S. bueycabonensis sp. n.. However, both species can easily be distinguished by the presence of a sclerotized cap in S. atlanticus sp. n. and its stylet ends in a sharp point distally, while it ends obliquely in S. bueycabonensis sp. n.. The general morphology of the cirrus and the stylet of S. espinosai sp. n. also resembles that of S. lanzarotensis. However, both species can easily be distinguished by the presence of a sclerotized cap in S. espinosai sp. n., which is lacking in S. lanzarotensis. Moreover, the stylet of S. espinosai sp. n. is needle shaped, with a proximal funnel, and is 52 μm long, while in S. lanzarotensis it is tubular, lacks the proximal funnel, and is 80 μm long. Both species have a cirrus armed over its entire length with shark-tooth-shaped spines, but in S. lanzarotensis these are distributed into two size groups (see above), while all spines are more or less 3 µm long in S. espinosai sp. n.. The general morphology of the copulatory organ of S. banesensis sp. n. is somewhat comparable to that of S. espinosai sp. n.. However, in the former species the cirrus is covered by much more, and much finer spines, and the sclerotized distal cap is much larger compared to the length of the stylet than it is in S. espinosai sp. n.. These features make both easily distinguishable.	en	Diez, Yander L., Reygel, Patrick, Artois, Tom (2019): Schizorhynchia (Platyhelminthes, Rhabdocoela) from eastern Cuba, with the description of fifteen new species. Zootaxa 4646 (1): 1-30, DOI: 10.11646/zootaxa.4646.1.1
