taxonID	type	description	language	source
C81B87938F12FFE95F9873A683FAFDD9.taxon	type_taxon	Type Species: Dextrasepiola taenia n. gen., n. sp. by monotypy	en	Lu, Chung Cheng, Okutani, Takashi (2022): Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia. Memoirs of Museum Victoria 81: 1-23, DOI: 10.24199/j.mmv.2022.81.01, URL: http://dx.doi.org/10.24199/j.mmv.2022.81.01
C81B87938F12FFE95F9873A683FAFDD9.taxon	diagnosis	Diagnosis: Sepiolinae with fins rounded with large anterior lobes, which do not reach the anterior mantle margin; fin length about 50 – 80 % mantle length. Suckers biseriate on all arms. Tentacular club suckers in 4 – 8 longitudinal series. Nuchal commissure narrow, not reaching over the ocular globes. A pair of dumbbell-shaped photophores on ventral surface of ink sac. Gladius absent. Ventral mantle margin slightly sinuate, without any deep funnel indentation. Right arm I of male hectocotylised. Hectocotylus tripartite: basal part with five suckers in two series, two suckers in dorsal series and three in ventral series; copulatory apparatus long, fleshy, tape like, formed by fusion of two adjoining very elongate sucker stalks, no additional modified structure on the arm (i. e. hook-like stalks); distal to tape-like copulatory apparatus biserial suckers to arm tip (19 suckers in holotype, 23 suckers in paratype 2). Female bursa copulatrix on right side of mantle cavity, open type (cf. Bello, 2020), roughly ear shaped.	en	Lu, Chung Cheng, Okutani, Takashi (2022): Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia. Memoirs of Museum Victoria 81: 1-23, DOI: 10.24199/j.mmv.2022.81.01, URL: http://dx.doi.org/10.24199/j.mmv.2022.81.01
C81B87938F12FFE95F9873A683FAFDD9.taxon	etymology	Etymology: Generic name Dextrasepiola is derived from Latin dextra meaning right or on the right side plus sepiola meaning a small cuttlefish. The name denotes the unique feature among the Sepiola and its kin having the right dorsal arm hectocotylised instead of the left dorsal one in mature males and the bursa copulatrix in females on the right side of the mantle cavity.	en	Lu, Chung Cheng, Okutani, Takashi (2022): Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia. Memoirs of Museum Victoria 81: 1-23, DOI: 10.24199/j.mmv.2022.81.01, URL: http://dx.doi.org/10.24199/j.mmv.2022.81.01
C81B87938F12FFE95F9873A683FAFDD9.taxon	discussion	Remarks: The hectocotylisation in Sepiolinae has been thoroughly discussed and illustrated by Bello (2020), Naef (1912 a, b; 1923) and Nesis (1982). All known species have the left dorsal arm hectocotylised and the sucker stalks of some suckers are modified into a horn-like or hook-like copulatory organ. The present genus is unique in having the right dorsal arm hectocotylised and the copulatory organ as one thick tape-like structure. In addition, the hectocotylus has the regular tripartite structure typical of most sepioline genera except for Euprymna and Eumandya (cf. Bello, 2020). The females of all known species of Sepiolinae possess a bursa copulatrix on the left side of the mantle cavity. The present genus is unique in having the bursa copulatrix on the right side of the mantle cavity. This right-handedness of the copulatory organs of both sexes of this genus certainly facilitate copulation in a normal fashion as they are on the same side of the animal.	en	Lu, Chung Cheng, Okutani, Takashi (2022): Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia. Memoirs of Museum Victoria 81: 1-23, DOI: 10.24199/j.mmv.2022.81.01, URL: http://dx.doi.org/10.24199/j.mmv.2022.81.01
C81B87938F11FFED5F87771A8047FC65.taxon	description	Figures 1 – 5, 13; Table 2 Material examined: Holotype: MOV F 80458: Redland Bay, Queensland, 27 ° 36 ' S, 153 ° 19 ' E, 1.2 m, CSIRO Moreton Bay Survey, J 43, Location 31, 10 Aug 1951, 1 male, mature, 8.2 mm mantle length (specimen # 1). Paratype 1: MOV F 91359: Redland Bay, Queensland, 27 ° 36 ' S, 153 ° 19 ' E, 1.2 m, CSIRO Moreton Bay Survey, J 43, Location 31, 10 Aug 1951, 1 female, mature, 7.8 mm mantle length (specimen # 2). Paratype 2: MOV F 74469: Peel Island, Queensland, 27 ° 30 ' S, 153 ° 21 ' E, 1.2 m, CSIRO Moreton Bay Survey, J 26, Location 41, 10 Aug 1951, 1 male, mature, 6.5 mm mantle length (specimen # 3). Paratype 3: MOV F 91361: Peel Island, Queensland, 27 ° 30 ' S, 153 ° 21 ' E, 1.2 m, CSIRO Moreton Bay Survey, J 26, Location 41, 10 Aug 1951, 1 female, mature, 8.7 mm mantle length (specimen # 4). Other material: MOV F 91360: Peel Island, Queensland, 27 ° 30 ' S, 153 ° 21 ' E, 1.2 m, CSIRO Moreton Bay Survey, J 26, Location 41, 10 Aug 1951, 2 specimens, poor condition, 1 female, juvenile, 5.4 mm mantle length, 1 specimen, sex indeterminate, 3.9 mm mantle length. Diagnosis: Small sepioline with right arm I of mature male hectocotylised, copulatory apparatus in the form of a long tape-like process, no hook-like structure on the arm. Females with bursa copulatrix on right side of mantle cavity. Description: Mantle (figs 1 a – c) short dome-shaped, slightly longer than wide, fused with head dorsally for about 25 % of width. Anterior ventral mantle margin shallowly concave with lateral projections at position of mantle-funnel connectives. Head wide, slightly narrower than mantle. Nuchal commissure narrow, not reaching beyond level of medial border of eyeball, approximately 25 – 40 % of mantle width at level of nuchal commissure. Eyes large, elliptical, located dorso-laterally on head. Cornea membrane protecting eye attached to skin of head along dorsal margin. Olfactory papilla located behind posterior corner of eye orbit, ventral photosensitive vesicle not found. Funnel long and slender, reaching the level beyond anterior eye margin, free from head for 60 – 80 % of funnel length. Funnel connects to head by an oblique muscle band extending from beneath anterior end of funnel locking cartilage to ventral side of head. Funnel locking cartilage (fig. 1 f) elongated oval with simple, slightly curved depression in the middle, mantle locking cartilage long, low ridge. Dorsal element of funnel organ (fig. 1 g) Y-shaped pad with a small papilla at the apex. Behind each ramus is swelling that connects dorsal funnel organ with base of funnel retractor. Ventral elements of funnel organ (fig. 1 g) a pronounced semi-spherical pad, becoming slightly narrower anteriorly, with a mamillar projection slightly posteriorly to centre. Funnel valve well developed on dorsal roof, tongue shaped, located well behind funnel aperture. Fins (figs 1 a – c) circular in outline, anterior border of fins projects forward prominently forming a deep cleft with mantle, anterior fin lobe reaching level halfway between fin insertion and mantle border or to mantle margin, posterior borders of fins convex, less pronounced. Length of fin base about 33 % of mantle length. Arms (figs 1 a – c, 2 a – c, 3) short, rounded aborally, flatten orally. All arms on both sexes with biserial suckers throughout. Because most suckers are lost, it was impossible to determine the sucker ring dentition and if the enlargement of suckers exists. In males, arm III is the longest and thickest, followed by arm II or arm IV. Right arm I of male (figs 1 d – e, 3) with a flat, fleshy, tape-like long process, appeared to be modified sucker stalks of proximal third sucker of dorsal series and proximal fourth sucker of ventral series fused together throughout their length. Length of the process reaches to almost the level of arm tip, thickened along proximal portion ending in a blunt tip. No sucker on the tape-like process of holotype, but a remnant of a tiny sucker on the process of paratype 2 (fig. 3). Distal to the tape-like process, 19 suckers in two series to arm tip on holotype (23 suckers in paratype 2); no hook-like structures on the arm. Left arm I in males and both arms I in females with 28 – 30 suckers in two series, with no peculiar or unusual development or modification. Arm II with 27 – 35 suckers in both sexes with no noticeable special development in either sex. In males, arms III thickened proximally, slightly tapers distally to about half of arm length then abruptly tapers distally; swollen proximal part with no suckers except several remnants of suckers; distal part strongly curled towards mouth, with 17 – 19 suckers. In females, arm III similar to arm II with 21 suckers. Arm IV of both sexes with 26 – 31 suckers. In males, aboral keel and swimming membrane absent on arms I – III, well developed along whole length of arms IV. In females, aboral keel and swimming membrane present on distal half of arms I and II, and almost whole length of arms III and IV. Webs shallow between all arms except between arms III and IV (web D), which half encloses base of tentacles in both sexes, web E non-existent. Tentacles weak, longer than arms. Club (fig. 4 a) slightly expanded, minute carpal suckers in 4 series, minute manal suckers in 6 series, those on dorsal 2 series larger than the remaining suckers, numerous minute suckers in 8 series on dactylus. Sucker ring dentition of largest club sucker finely toothed around entire minute circle. Gills with 15 – 20 lamellae per demibranch, plus a terminal lamella. A pair of dumbbell-shaped, yellowish photophores, opaque with both ends swollen on both sides of ink sac (figs 1 g, 4 b). Upper beak (fig. 4 d) rostrum slightly curved; jaw angle obtuse; wing long, shoulder (cutting edge) serrated; rostrum dark brown to black, hood, shoulder and dorsal part of lateral wall light brown, posterior part of hood, most of lateral wall unpigmented, transparent. Lower beak (figs 4 e, f) wide; rostrum with blunt tip; jaw edge rough, slightly serrated, jaw angle indistinct; blunt tooth on shoulder; no notch in hood; lateral wall without fold or ridge, roughly elongate rhomboidal with lower edge slightly concave, corner faintly produced; rostrum and hood light brown, posterior part of lateral wall and wings transparent. Radula (fig. 4 c) seven series, each row with seven unicuspid teeth. Gladius absent. Spermatophores (figs 5 a, b) small, five spermatophores from the holotype approximately 2 – 2.5 mm long (spermatophore length index 24 – 30), greatest width approximately 0.08 – 0.1 mm (spermatophore width index 3.4 – 4.8), sperm reservoir about 0.4 – 0.5 mm (sperm reservoir index 19 – 22), structure complex, with spiral appearance in ejaculatory apparatus and the sperm mass, cement body 0.72 – 0.78 mm long (cement body index 30 – 36), connects to sperm reservoir by a narrow neck, oral end of cement body elongated funnel shaped. Bursa copulatrix (figs 5 c – f) open type, large, roughly ear-shaped, longer than wide; anteriorly extends medially towards midline, running antero-laterally just below right funnel locking cartilage, reaching posterior end of mantle cavity. Longitudinal opening of bursa close to mantle ventral midline, running along long axis of bursa. Mature females with large nidamental gland, (nidamental gland index 36.6 – 54.4). Alcohol-preserved specimens brown in colour, dorsal mantle surface lighter than ventral surface. Dark chocolatebrown chromatophores scattered over brown-coloured background on both dorsal and ventral surfaces of head and mantle, and along aboral surface of all arms. Surfaces of fins devoid of chromatophores and pigmented spots. Skin smooth, lacking sculpture or papillae. Etymology: Species epithet taenia from Latin taenia meaning tape-like. The name denotes the tape-like structure in the copulatory apparatus on the hectocotylised arm of the males. Distribution: Only known from Moreton Bay, Queensland, Australia (fig. 13). Remarks: This is the only known species in the genus. Due to the poor preservation of the specimens, nearly all suckers are lost or are without sucker rings. The description of sucker ring dentition and spermatophores must wait until better materials are available. The poor state of preservation resulted in distorted morphology of the specimens studied. This most certainly contributes to the wide range of the morphometric indices listed in Table 2.	en	Lu, Chung Cheng, Okutani, Takashi (2022): Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia. Memoirs of Museum Victoria 81: 1-23, DOI: 10.24199/j.mmv.2022.81.01, URL: http://dx.doi.org/10.24199/j.mmv.2022.81.01
C81B87938F15FFED5C2275A1856FFC65.taxon	diagnosis	Diagnosis: Small Sepiolinae with fins rounded with large anterior lobe, which do not reach the anterior mantle margin; fin length about 40 – 66 % mantle length. Suckers biseriate on all arms. Tentacular club suckers in 4 – 8 longitudinal series. Nuchal commissure moderately wide, not reaching over the ocular globes, about 38 – 59 % of mantle width. A pair of dumbbell-shaped or elongated kidney-shaped photophores on ventral surface of ink sac. Gladius absent. Ventral mantle margin slightly sinuate, without any deep funnel indentation. No arm in mature males hectocotylised. Some arm suckers in mature males grossly enlarged. Female bursa copulatrix closed type, pouch-like, opening at level of base of left gill.	en	Lu, Chung Cheng, Okutani, Takashi (2022): Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia. Memoirs of Museum Victoria 81: 1-23, DOI: 10.24199/j.mmv.2022.81.01, URL: http://dx.doi.org/10.24199/j.mmv.2022.81.01
C81B87938F15FFED5C2275A1856FFC65.taxon	type_taxon	Type Species: Amutatiola macroventosa n. gen., n. sp. by monotypy.	en	Lu, Chung Cheng, Okutani, Takashi (2022): Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia. Memoirs of Museum Victoria 81: 1-23, DOI: 10.24199/j.mmv.2022.81.01, URL: http://dx.doi.org/10.24199/j.mmv.2022.81.01
C81B87938F15FFED5C2275A1856FFC65.taxon	etymology	Etymology: Generic name Amutatiola is derived from Greek a meaning without or absent plus Latin mutatus meaning changed or altered; the ending - ola is the diminutive suffix of sepiola meaning a small cuttlefish. The name denotes the unique feature among the Sepiolinae of having no arm hectocotylised in males.	en	Lu, Chung Cheng, Okutani, Takashi (2022): Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia. Memoirs of Museum Victoria 81: 1-23, DOI: 10.24199/j.mmv.2022.81.01, URL: http://dx.doi.org/10.24199/j.mmv.2022.81.01
C81B87938F14FFFB5F98705982B2FD9C.taxon	description	Figures 6 – 13; Tables 3, 4 Material examined: Holotype: MOV F 80081: south-east Tasmania, 42 ° 38.1 ' S, 148 ° 12.4 ' E, trawl depth 36 – 42 m, bottom depth 86 – 90 m, collected by CSIRO, FRV Soela SO 1 / 85 / 124, 27 Feb 1985, 0331 hr, Rectangular Midwater Trawl with 8 m 2 mouth area, 1 male, 9.8 mm mantle length, mature (specimen # 1). Paratype 1: MOV F 275293: Great Australian Bight, 32 ° 43 ' S, 126 ° 00 ' E – 32 ° 45 ' S, 125 ° 59 ' E, 40 – 170 m, collected by CSIRO, FRV Soela SO 3 / 80 / 32, 13 May 1980, 0100 hr, IYGPT, 1 female, 12.2 mm mantle length, mature (specimen # 11). Paratype 2: WAM 3091 - 83: west side of Irwin Reef, Port Denison, Western Australia, 29 ° 16 ' S, 114 ° 55 ' E; 7 – 8 m, collected by N. Sinclair, 4 Apr 1983, Rotenone Station, 1 male, 9.5 mm mantle length, mature (specimen # 3). Paratype 3: MOV F 80083: south-east Tasmania, 42 ° 39.7 ' S, 148 ° 12.1 ' E, trawl depth 5 – 10 m, bottom depth 90 – 95 m, collected by CSIRO, FRV Soela SO 1 / 85 / 104, 15 Feb 1985, 2034 hr, Rectangular Midwater Trawl with 8 m 2 mouth area, 1 male, 9.6 mm mantle length, mature (specimen # 2). Paratype 4: MOV F 275294: Great Australian Bight, 33 ° 30 ' S, 131 ° 50.0 ' E – 33 ° 30 ' S, 131 ° 53 ' E, 200 – 144 m, collected by FRV Soela SO 3 / 80 / 1, 8 May 1980, 1 female, 12.8 mm mantle length, mature (specimen # 9). Paratype 5: MOV F 158244: Luck Bay, western point off beach, Cape Le Grand National Park, Western Australia, 33 ° 59 ' S, 122 ° 13 ' E, 5 m, active over algae, collected by D. Rawlins, J. Finn and M. Norman, 26 April 1998, 1915 hr, hand net, 1 male, 8.8 mm mantle length, mature (specimen # 4). Paratype 6: MOV F 275296: Luck Bay, western point off beach, Cape Le Grand National Park, Western Australia, 33 ° 59 ' S, 122 ° 13 ' E, 5 m, active over algae, collected by D. Rawlins, J. Finn and M. Norman, 26 April 1998, 1915 hr, hand net, 1 female, 6.2 mm mantle length, subadult (specimen # 17). Paratype 7: MOV F 275295: Luck Bay, western point off beach, Cape Le Grand National Park, Western Australia, 33 ° 59 ' S, 122 ° 13 ' E, 5 m, active over algae, collect. by D. Rawlins, J. Finn and M. Norman, 26 April 1998, 1915 hr, hand net, 1 male, 8.1 mm mantle length, mature (specimen # 5). Paratype 8: MOV F 91362: Luck Bay, western point off beach, Cape Le Grand National Park, Western Australia, 33 ° 59 ' S, 122 ° 13 ' E, 5 m, active over algae, collected by D. Rawlins, J. Finn and M. Norman, 26 April 1998, 1915 hr, hand net, 1 male, 6.9 mm mantle length, mature (specimen # 7). Other material: MOV F 80087: Franklin Island, South Australia, 32 ° 27 ' S, 133 ° 40 ' E, sub-light, 4 Apr 1953, 1 male, 8.0 mm mantle length, mature; 1 female, 9.2 mm mantle length, subadult (specimens # 6, 16). MOV F 80085: GreatAustralian Bight, 32 ° 43 ' S, 126 ° 00 ' E – 32 ° 45 ' S, 125 ° 59 ' E, 40 – 170 m, collected by CSIRO, FRV Soela SO 3 / 80 / 32, 13 May 1980, 0100 hr, IYGPT, 1 male, 6.6 mm mantle length, subadult; 9 males, 7.7 – 9.6 mm mantle length, mature; 3 females, 4.7 – 6.5 mm mantle length, juveniles. MOV F 80086: Great Australian Bight, 33 ° S, 126 ° E, 48 – 50 m, collected by CSIRO, FRV Soela S 03 / 80 / 33, 13 May 1980, IYGPT, 1 male, 7.1 mm mantle length, subadult; 2 males, 8.5 – 9.8 mm mantle length, mature; 1 female, 12.2 mm mantle length, mature. MOV F 80084: Great Australian Bight, 33 ° 22 ' S, 125 ° 27 ' E – 33 ° 23 ' S, 125 ° 27 ' E, 64 m, collected by CSIRO, FRV Courageous Q 47 / 51, 7 Apr 1979, 2 females, 10.3 – 13.2 mm mantle length, mature (specimens # 8, 15). MOV F 77100: Bass Strait, 60 km west of Cape Frankland, Flinders Island, 39 ° 53 ' S, 147 ° 03 ' E, trawl depth 20 – 60 m, bottom depth 66 – 68 m, collected by CSIRO, FRV Soela SO 1 / 82 / 1, 16 Jan 1982, 1 female, 5.6 mm mantle length, juvenile; 4 females, 10.6 – 12.6 mm mantle length, mature (specimens # 10, 12, 13, 14; four larger specimens). MOV F 80082: Great Australian Bight, 33 ° 30 ' S, 131 ° 50.0 ' E – 33 ° 30 ' S, 131 ° 53 ' E, 200 – 144 m, collected by FRV Soela SO 3 / 80 / 1, 8 May 1980, 9 males, 4.8 – 7.6 mm mantle length, immature; 3 females, 5.4 – 6 mm mantle length, immature. MOV F 80080: GreatAustralian Bight, 32 ° 22 ' S, 131 ° 19 ' E – 32 ° 17 ' S, 131 ° 18 ' E, 54 – 68 m, collected by CSIRO, FRV Soela SO 3 / 81 / 41, 6 Aug 1981, 2130 hr, IYGPT, 2 females, 10.4 – 13.3 mm mantle length, mature. MOV F 158291: Port Victoria Jetty, South Australia, 34 ° 29 ' 45 ” S, 137 ° 28 ' 53 ” E, collected by J. Finn and Mark D. Norman, 21 May 1998, 1 female, 10.9 mm mantle length, mature. Description: Mantle (figs 6 a – c, 7, 8 a – b) short dome-shaped with blunt posterior end, slightly longer than wide, muscular, studded by large chromatophores, fused with head dorsally. Anterior ventral mantle margin (figs 6 b, 7 b, 8 b) shallowly concave with blunt lateral projections at position of mantle – funnel connectives, reaching level of posterior margin of eye lens. Head slightly narrower than mantle, head length about 50 % of mantle length. Nuchal commissure moderately wide, width 38.6 – 50.5 % of mantle width at commissure in males, 43 – 59 % of mantle width at commissure in females, commissure does not reach beyond medial borders of bulbous eyes. Head almost entirely occupied by a pair of large bulbous eyes with elliptical eye lid. Cornea membrane protecting eye attached to skin of head along dorsal margin. Olfactory papilla located behind posterior corner of eye orbit, ventral photosensitive vesicle not found. Funnel (figs 6 b, d, 7 b, d, 8 b) long and slender, lacking pigmentation, reaching the level beyond anterior eye margin, and free from head for 55 – 80 % of funnel length. Funnel connects to head by an oblique muscle band extending from beneath anterior end of funnel locking cartilage to ventro-posterior corner of eye. Dorsal funnel organ (fig. 8 e) broad V-shaped with a blunt papilla at the apex. A prominent funnel retractor muscle connected funnel near base with ventro-posterior periphery of eye. Ventral elements of funnel organ (fig. 8 e) tear drop-shaped pad, narrower anteriorly. Funnel valve well developed on dorsal roof, tongue shaped, located well behind funnel aperture. Funnel locking cartilage (fig. 8 d) elongated oval with simple, slightly curved depression in middle, mantle locking cartilage long, low ridge. Fins (figs 6 a – c, 7 a – b, d, 8 a – b) circular in outline, attach to mantle at mid-point of mantle, meeting mantle smoothly posteriorly, anterior border of fins project forward prominently forming a deep cleft with mantle, border not reaching level of mantle margin, posterior borders of fins convex, less pronounced. Length of fin base about 33 % of mantle length. Arms moderately long, rounded aborally, flattened orally, lacking aboral keel and protective membranes. Arm formula inconsistent, in males arm I or II usually longest, arm III or IV usually shortest; in females, arm II or III longest, arm I or IV shortest. Arm suckers biserial with strong sexual dimorphism in sucker sizes and sucker ring dentitions. Web moderately pronounced between arms III and IV. No heteromorphism exists in morphology of right and left arms in males, specifically in the dorsal arms. Webs shallow between all arms except arms IV where no web exists, web D encloses base of tentacles in both sexes. In males (figs 6 f – h, 7, 9), arm I with up to 28 suckers, some suckers in proximal portion of arm enlarged: first to sixth proximal suckers on both dorsal and ventral series enormously enlarged, the third sucker on ventral series the largest, enlarged suckers on ventral series generally larger than dorsal series. Diameter of enlarged suckers exceed arm width. Arm II with up to 32 suckers, of which proximal second to seventh on ventral series slightly enlarged; no enlargement of suckers on dorsal series, suckers gradually reduced in size from proximal to distal end of arm II. Arm III with approximately 27 suckers, first to fourth proximal suckers on ventral series enormously enlarged (1.6 mm in diameter); no enlargement of suckers on dorsal series. Arm IV with approximately 29 normal suckers, no enlargement. Chitinous sucker rings of normal suckers almost at the same level as muscular rim of suckers, sucker ring margin minutely denticulated (figs 10 a, c, d). Chitinous sucker rings of enlarged suckers (figs 10 b, e, f) extended aborally beyond level of muscular sucker rims, chitinous ring often covered by thin, opaque membrane, sucker ring divided into 2 parts, distal 33 – 50 % of sucker ring long, semicircular shape, proximal portion of sucker ring lower than distal portion, crescent shaped. Females with more suckers than the corresponding arm in males. Arm I with up to 34 suckers, arm II with up to 45 suckers, arm III with up to 38 suckers and arm IV to 38 suckers. No enlarged sucker in females (figs 8 c, 10 g – j). Chitinous sucker rings (figs 10 i – j) similar to the non-enlarged suckers in males, sucker rings entire, with minutely denticulated margin. Tentacle weak, longer than arms. Club slightly expanded, curled due to the presence of the dorsal web, small carpal suckers in 4 series, manal and dactyl suckers small, numerous in approximately 6 – 8 series, carpal and manal suckers much larger than dactylus suckers, in the central part of club, particularly those on dorsal 2 series slightly larger than others, suckers slightly diminish in size towards club margins and distally (fig. 11 a). Sucker ring dentition of largest club sucker finely toothed around entire minute circle. Gills with 16 – 21 lamellae per demibranch, plus a terminal lamella. A pair of yellowish photophores (figs 6 e, 11 b), opaque with both ends swollen, dumbbell-shaped or elongated kidney-shaped, on both sides of ink sac. Upper beak (fig. 11 c) rostrum slightly curved with pointed rostral tip; jaw angle obtuse; wing long, shoulder (cutting edge) nearly straight; lateral wall deep; rostrum dark brown to black, hood, shoulder and dorsal part of lateral wall light brown, posterior part of hood, most of lateral wall unpigmented, transparent. Lower beak (figs 11 d, e) wide; rostral tip blunt; jaw edge almost smooth, jaw angle indistinct; blunt tooth on shoulder; no notch in hood; lateral wall without fold or ridge, roughly elongate rhomboidal with lower edge concave, corner faintly produced; rostrum and hood light brown in colour, wings and posterior part of lateral wall transparent. Radula (fig. 11 f) 7 series, each row with 7 unicuspid teeth. Gladius absent. Spermatophores (fig. 12 a) small, 8 spermatophores from 5 individuals approximately 2.6 – 4.1 mm long (spermatophore length index 29.3 – 42.7), greatest width approximately 0.17 – 0.25 mm (spermatophore width index 5.4 – 7), sperm mass moderately long, sperm reservoir about 0.97 – 1.5 mm (sperm reservoir index 27.9 – 43.2), structure simple, no obvious ornamental appearance, cement body approximately 0.39 – 0.75 mm long, connects to sperm reservoir by a narrow neck, oral end of cement body elongated funnel-shaped (cement body index 11 – 22), appearance of ejaculatory apparatus plain, without spiral appearance of the preceding species. Bursa copulatrix closed type, pouch like (Bello, 2020; fig. 12 b), opening at level of base of left gill, running dorsally, on a mature female (Paratype 1) anterior end width approximately 2 mm with slit-like opening approximately 1.1 mm long, length of pouch approximately 2.3 mm, some spermatangia visible at opening of bursa. Mature and maturing females with large nidamental gland, (nidamental gland index 37.2 – 56.6). Alcohol-preserved specimens brown in colour, dorsal mantle surface slightly darker than ventral surface. Dark blackish brown chromatophores scattered over brown-coloured background on both dorsal and ventral surfaces of head and mantle, and along aboral surface of all arms. Surfaces of fins devoid of chromatophores and pigmented spots, except a semicircular patch of brown chromatophores along fin insertion on dorsal side of fin. Skin smooth, lacking sculpture or papillae. Etymology: Species epithet macroventosa is derived from Greek makros meaning large plus Latin ventosa meaning suction cup or sucker. The name denotes the presence of the greatly enlarged suckers on some arms of mature males. Distribution: Flinders Island, Bass Strait, and south-eastern Tasmania to South Australia and the Great Australian Bight to Port Denison, Western Australia (fig. 13). Remarks: Apart from Dextrasepiola taenia n. sp. described earlier in this paper, all known species of the subfamily Sepiolinae have the left dorsal arm of maturing and mature males hectocotylised and sucker stalks of some suckers in the copulatory apparatus of the hetocotylus modified into horn-like, hook-like, papillae or laminae (Bello, 2020; Naef, 1912 a, b; 1923; Nesis, 1982). The present species is unique in having enormously enlarged suckers and lacking a hectocotylised arm bearing highly modified sucker stalks in males. There are some species of Sepiolinae that carry enlarged suckers in hectocotylised arms (Bello, 2020; Naef, 1923), but none is so pronounced as in this species. The female has normal-sized suckers but more of them. In addition to sucker size, strong sexual dimorphism exists in the dentition of the sucker ring: the dentition of the sucker ring of enlarged suckers in males conspicuously differs from that of the females and the non-enlarged suckers in males. The structure of the cement body and the sperm mass of the spermatophore of this species is simple in appearance, with no obvious ornamentation, as seen in the preceding species or in Sepietta oweniana (d’Orbigny in Férussac and d’Orbigny, 1841; cf. figs 5 a, b, 12 a; Øresland and Oxby, 2021, figs 59 – 61). As in the preceding species, the ranges of the morphometric indices are wide (Tables 3 – 4). This is certainly due to the range of the state of specimens prior to and during fixation and preservation. With such a wide range of values, it is of dubious value to use them to delineate a specific index for the species.	en	Lu, Chung Cheng, Okutani, Takashi (2022): Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia. Memoirs of Museum Victoria 81: 1-23, DOI: 10.24199/j.mmv.2022.81.01, URL: http://dx.doi.org/10.24199/j.mmv.2022.81.01
