taxonID	type	description	language	source
DA01647C9655FFAB2F905351FAD0FA09.taxon	materials_examined	Type species Strandesia mercatorum (Vávra, 1895)	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9655FFAB2F905351FAD0FA09.taxon	diagnosis	Diagnosis (after Savatenalinton & Martens 2009 b): Carapace in lateral view with diverse shapes: subovate, elliptical, moderately elongated with L less than twice the H, in frontal view, position of LV and RV equal or slightly unequal; LV with internal groove along valve margin in inner view, inner lamella without inner list (type C) or with 1 inner list (type D); d-seta on T 1 present; hemipenis with large, wing-like lateral shield and with 1 loop in the postlabyrinthal spermiduct; Zenker organ with cone-shaped chitinous sheet at both proximal and distal ends.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9655FFAD2F9052DBFEFAFC99.taxon	materials_examined	Holotype. Female, soft parts dissected in glycerine on a sealed glass slide, valves stored dry in a micropalaeontological slide (MSU-ZOC. 105). Paratypes. Five dissected females (MSU-ZOC. 106 – 110) stored like the holotype, five undissected female carapaces (MSU-ZOC. 111 – 115) stored dry in micropalaeontological slide and c. 30 females in 70 % EtOH. Repository. The holotype and all paratypes are deposited in the Natural History Museum, MSU (Mahasarakham, Thailand). Type locality. Phan Reservoir (swamp), Udon Thani Province (Tab. 1). Material collected on 31 January 2011, coordinates: 17 ° 50 ΄ 03 ˝ N and 103 ° 04 ΄ 21 ˝ E. Accompanying ostracod fauna: Astenocypris papyracea (Sars, 1903), Chrissia sp., Cypretta sp. 1, Cypretta sp. 2, Cypridopsis sp. Physocypria sp., Pseudocypretta maculata Klie, 1932, Pseudostrandesia striatoreticulata (Klie, 1932), Strandesia pholpunthini n. sp., Strandesia kraepelini (G. W. Müller, 1906). Other localities. 1) Bung Khong Long (swamp), Bueng Kan Province. Material collected on 30 January 2011, coordinates: 17 ° 57 ΄ 35 ˝ N and 104 ° 02 ΄ 06 ˝ E. Accompanying ostracod fauna: Alicenula sp., Cypridopsis sp., Fabaeformiscandona subacuta, (Yang, 1982), Limnocythere sp., Thaicythere srisumonae Savatenalinton et al., 2008, Physocypria sp. 1, Physocypria sp. 2, Pseudostrandesia striatoreticulata (Klie, 1932), Strandesia kraepelini (G. W. Müller, 1906). 2) Kud Thing (swamp), Bueng Kan Province. Material collected on 30 January 2011, coordinates: 18 ° 20 ΄ 36 ˝ N and 103 ° 39 ΄ 52 ˝ E. Accompanying ostracod fauna: Cypretta sp., Thaicythere srisumonae Savatenalinton et al., 2008, Physocypria sp. 1, Physocypria sp. 2.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9655FFAD2F9052DBFEFAFC99.taxon	etymology	Etymology. The new species is named after Prof. Dr. Koen Martens (Royal Belgian Institute of Natural Sciences, Brussels) in recognition of his outstanding contributions to research on Ostracoda and for his warm hospitality during my study in Belgium.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9655FFAD2F9052DBFEFAFC99.taxon	diagnosis	Diagnosis. Carapace in lateral view subovate, with dorsal hump on both valves situated in front of mid-length; valve surface set with pits and robust, long setae, arising from both rimmed and un-rimmed-pores; LV overlapping RV anteriorly, ventrally and posteriorly; carapace in dorsal view sub-elliptical, with greatest width situated at midlength; LV with groove along valve margin; inner lamella calcified with one inner list; two large bristles on third endite of Mx 1 smooth; d-seta on T 1 present; length of Ga of caudal ramus c. 1 / 3 of that of ramus, Sp markedly long (reaching half of Gp); CR attachment stout, with Triebel’s loop situated at middle of distal part of main branch, db short, vb well-developed. Differential diagnosis. Strandesia martensi n. sp. is similar to Strandesia perakensis Victor & Fernando, 1981 and Strandesia sanoamuangae Savatenalinton & Martens, 2010. The new species can be distinguished from these two species by the presence of a large dorsal hump on both valves, large anterior LV / RV overlap, the shape of the valves and the ornamentation of the valve surface, which is set with pits, long spines and long rim-pore setae in S. martensi n. sp.; with tiny tubercles and long rim-pore setae in S. sanoamuangae and with pits, long setae and short spines in S. perakensis. In addition, the chaetotaxy of the limbs shows differences amongst them, especially by the long Sp of the CR in the new species.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9655FFAD2F9052DBFEFAFC99.taxon	description	Measurements (mean, in µm). LV (n = 3), L = 865, H = 624; RV (n = 3), L = 835, H = 620; carapace (n = 3), L = 878, W = 459. Ecology. The new species is known from three localities. All localities are swamps, which have dense and diverse macrophytes in the littoral zone. The species occurs at a pH range of 7.1 – 7.6, a temperature range of 26.1 – 31.7 ° C and a dissolved oxygen range of 3.3 – 6.6 mg / l. Description of female. Carapace in lateral view (Fig. 1 A) subovate, anterior margin widely rounded, posterior margin more narrowly rounded, LV widely overlapping RV, especially anteriorly, dorsal margin with dorsal hump situated slightly in front of mid-length, ventral margin rather straight, valve surface set with pits, long spines and long rim-pore setae (Fig. 1 D). Carapace in dorsal view (Fig. 1 C) subelliptical, with greatest width situated at mid-length, LV overlapping RV anteriorly and posteriorly, anterior margin of LV sharply curved with a large flange. LV in interior view (Fig. 1 F) with groove along valve margin, dorsal margin slightly concave, greatest height situated in front of mid-length; sloping down to anterior and posterior margin, the former widely rounded, the latter more narrowly rounded, ventral margin almost straight; calcified inner lamella relatively wide anteriorly, with one inner list, posteriorly narrower. RV in interior view (Fig. 1 G) with marginal selvage, inner lamella without inner list, anteriorly broader than posteriorly. A 1 (Fig. 2 A): first segment with elongated proximal Wouters organ, one dorso-subapical seta of intermediate length (almost reaching tip of segment) and two long ventro-apical setae. Second segment slightly wider than long, with one long dorso-apical seta (reaching tip of the next segment) and a long Rome organ. Third segment bearing three setae: one long dorso-apical one, reaching halfway penultimate segment, and two shorter ventro-apical setae, one reaching slightly beyond the tip of fourth segment and another one spine-like. Fourth segment with two long dorsal setae and two subequal, shorter ventral setae (the long one reaching beyond half of penultimate segment). Fifth segment dorsally with two long setae, ventrally with two (one long, one shorter) setae, the shorter one reaching beyond tip of penultimate segment. Penultimate segment with four long setae. Terminal segment with three (two long, one short) apical setae and an aesthetasc y a, the latter c. twice as long as the short apical seta. A 2 (Fig. 2 B): exopodite with three (one long, two short) setae, the long one reaching tip of first endopodal segment. First endopodal segment with five long (reaching beyond tip of terminal claws) and one short natatory setae, length of the shortest seta reaching more than half way the penultimate segment, aesthetasc Y long, ventroapical seta long, reaching beyond tip of terminal segment. Penultimate segment divided, distally with three serrated claws, aesthetasc y 2 long (reaching beyond tip of terminal segment), z 1 – z 3 setae long; this segment medially with two (one long, one shorter) dorsal setae (length of the short one c. 2 / 3 of that of the long one) and four ventral setae of unequal length (t 1 – t 4). Terminal segment with two serrated claws (GM and Gm), a g-seta and an aesthetasc y 3, length of Gm c. 3 / 4 of that of GM, length of aesthetasc y 3 c. half of that of accompanying seta, the latter of similar length as seta g. Md-palp (Fig. 2 C): first segment with two large setae (s 1 and s 2), one slender, long seta and a long, smooth αseta. Second segment dorsally with three unequal long apical setae, length of the shortest c. 1 / 3 of that of the longest; ventrally with a group of three long hirsute setae, one shorter hirsute seta and the β-seta, the latter plumose, cone-shaped and with pointed tip. Penultimate segment consisting of three groups of setae: dorsally with a group of four unequal, long, subapical setae; laterally with an apical γ-seta and three further smooth apical setae, the former stout, hirsute, long (length c. 2.3 times of that of terminal segment); ventrally with two (one long, one short) apical setae, the latter reaching slightly beyond mid length of terminal segment). Terminal segment (Fig. 2 D) bearing three claws and three setae. Mx 1 (Fig. 3 A) with two-segmented palp, three endites and a large branchial plate; basal segment of palp with a group of five long, unequal apical setae and two (one long, one shorter) subapical setae, the latter reaching beyond tip of terminal segment (length c. twice that of terminal segment), terminal segment elongated, apically with three claws and three setae. Two large bristles on third endite smooth. Sideways-directed bristles on first endite unequally long, length of short one c. 4 / 5 of that of long one. T 1 (Fig. 3 B): protopodite with two short a-setae, long b and d-setae, distally with 14 (10 apical, four subapical) hirsute setae of unequal length. Endopodite a weakly built palp with three unequal apical setae. T 2 (Fig. 3 C) with seta d 1 c. twice the length of seta d 2. Second segment with long e-seta (reaching c. 2 / 3 of penultimate segment). Penultimate segment divided, proximal segment (a) bearing long f-seta (reaching beyond tip of terminal segment), distal segment (b) with a pair of apical setae (long g-seta, one spine-like). Terminal segment with two (one dorsally, one ventrally) apical h 1 and h 3 setae and a serrated claw (h 2). T 3 (Fig. 3 D) a cleaning limb. First segment with long d 1, d 2, d 3 setae. Second segment with long apical e-seta (slightly less than half of the next segment). Third segment with medially long f-seta (reaching tip of segment). Terminal segment with an apical pincer and three setae, one short h 1 seta, one claw-like h 2 seta and one reflexed subapical h 3 seta, length of the latter c. 3 / 4 of that of third segment. CR (Fig. 3 E) well-developed, with ventral margin serrated, bearing c. 7 groups of setulae, Ga and Gp long, serrated, length of Ga c. 1 / 3 that of ramus, length of Gp c. 2 / 3 that of Ga. Sa long (slightly shorter than Gp), Sp markedly long (reaching half the length of Gp). CR attachment (Fig. 3 F) stout, with Triebel’s loop with two eyelets, situated at middle of distal part of main branch, db and vb well-developed. Male unknown.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9655FFAD2F9052DBFEFAFC99.taxon	discussion	Remarks. The presence of dorsal hump occurs in several Strandesia species, for example, S trandesia mercatorum (Vávra, 1895), S trandesia cyprinotoides Klie, 1938, S trandesia elatior (Vávra, 1897), S trandesia evae Gauthier, 1951, and is now also known from S trandesia martensi n. sp. Although the shape of dorsal hump differs between these species, the dorsal hump appears on the RV only, except in S. martensi n. sp., where it is found on both valves. Based on this character, S. martensi n. sp. is superficially similar to Sataracypris gibbosa (Baird, 1837). Sataracypris is an uncertain and monospecific genus, which was established by Deb (1983) using Cypris gibbosa Baird, 1837 as type species. In her view, the appearance of the prominent dorsal hump was the main character to separate the species from other species in the genus Cypris and therefore a new genus was created for it. The discovery of S. martensi n. sp. in this study revealed that S. gibbosa probably belongs to the lineage of Strandesia in which the dorsal hump is present and prominent on both valves. There are several differences between Sataracypris gibbosa and Strandesia martensi n. sp. There is a large anterior valve overlap in S. martensi n. sp., which is absent in S. gibbosa. This character can be clearly seen from carapaces in both lateral and dorsal views. The valve surface is ornamented by thin, scanty setae in S. gibbosa, whereas it is set with pits, long spines and long seta in rimmed pores in S. martensi n. sp. In S. gibbosa, the penultimate segment of A 2 is undivided, while this segment is divided in S. martensi n. sp., although this may also be an erroneous observation in S. gibbosa. In addition, the new species differs from S. gibbosa in the morphology of the CR, which is more slender, with the Sp markedly long and with the length of the ramus c. twice of that of Ga in S. martensi n. sp. Sataracypris gibbosa, on the other hand, has stout caudal rami, a short Sp and relatively shorter rami (length c. 1.5 times of Ga). The morphology of the CR attachment remains unknown in S. gibbosa. As all Strandesia – species have Triebel’s loops on the attachments of the caudal rami (it is a synapomorphy of the entire subfamily Cypricercinae), the redescription of S. gibbosa is thus needed before a new taxonomic position can be proposed.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9653FFA62F9054ABFB75FEC4.taxon	materials_examined	Holotype. Female, soft parts dissected in glycerine on a sealed glass slide, valves stored dry in a micropalaeontological slide (MSU-ZOC. 116). Paratypes. One dissected female (MSU-ZOC. 117) stored like the holotype, one undissected female (MSU- ZOC. 118) stored dry in a micropalaeontological slide. Repository. The holotype and all paratypes are deposited in the Natural History Museum, MSU (Mahasarakham, Thailand). Type locality. Phan Reservoir (swamp), Udon Thani Province. Material collected on 31 January 2011, coordinates: 17 ° 50 ΄ 03 ˝ N and 103 ° 04 ΄ 21 ˝ E. Accompanying ostracod fauna: Astenocypris papyracea (Sars, 1903), Chrissia sp., Cypretta sp. 1, Cypretta sp. 2, Cypridopsis sp. Physocypria sp., Pseudocypretta maculata Klie, 1932, Pseudostrandesia striatoreticulata (Klie, 1932), Strandesia kraepelini (G. W. Müller, 1906), Strandesia martensi n. sp.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9653FFA62F9054ABFB75FEC4.taxon	etymology	Etymology. The new species is named after Assoc. Prof. Dr. Pornsilp Pholpunthin (Prince of Songkla University, Songkla, Thailand) in recognition of his prominent contributions to aquatic science and taxonomy in Thailand.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9653FFA62F9054ABFB75FEC4.taxon	diagnosis	Diagnosis. Carapace in lateral view elongated (length 1.9 times width), greatest height situated in front of midlength; anterior margin broadly rounded, posterior margin more narrowly rounded; carapace in dorsal view subelliptical, with greatest width situated at mid-length, anterior and posterior extremity with different asymmetry: LV overlapping RV anteriorly, RV overlapping LV posteriorly, posterior extremity slightly compressed on RV. LV in interior view with groove along valve margin, greatest height situated at c. 1 / 3 of length, inner lamella anteriorly wide, without inner list, posteriorly narrower. RV in interior view with marginal selvage, inner lamella without inner list, posterior part with large flange; A 1 with short Rome organ, aesthetasc Y on A 2 long; one large bristle on third endite of Mx 1 smooth, another one serrated; d seta on T 1 present; length of Ga of CR c. 1 / 3 of that of ramus, Sp stout and long; CR attachment stout, with Triebel’s loop situated at middle of distal part of main branch, db short, vb well-developed. Differential diagnosis. Strandesia pholpunthini n. sp. has Strandesia caudata Klie, 1939 as its closest congener. It can be distinguished by the shape of the posterior part in dorsal view, which is compressed at the posterior extremity of the RV in Strandesia pholpunthini n. sp. (this feature is absent in S. caudata) and by the large flange at posterior part of the RV in internal view.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9653FFA62F9054ABFB75FEC4.taxon	description	Measurements (mean, in µm). LV (n = 2), L = 1161, H = 657; RV (n = 2), L = 1163, H = 652; Carapace (n = 1), L = 1135, W = 581. Ecology. The new species is only known from the type locality, in which dense macrophyte stands occupy the littoral zone. It occurs at a pH of 7.1, a temperature of 30.3 ° C and a dissolved oxygen content of 6.6. mg / l. Description of female. Carapace in lateral view (Fig 4 A) elongated (length c. 1.89 times width), greatest height situated in front of mid-length, dorsal margin slightly unevenly arched, ventral margin slightly sinuous in front of mid-length, anterior margin broadly rounded, posterior margin more narrowly rounded; valve surface weakly reticulated (Fig. 4 B – C). Carapace in dorsal view (Fig. 4 D) subelliptical, greatest width situated at mid-length, LV overlapping RV anteriorly, RV overlapping LV posteriorly, anterior and posterior extremity unequal, posterior extremity compressed on RV. LV in interior view (Fig. 4 E) with groove along valve margin, dorsal margin curved, greatest height situated at c. 1 / 3 of length, sloping down to anterior and posterior margin, the former widely rounded, the latter more narrowly rounded; ventral margin slightly sinuous; inner lamella calcified, anteriorly wide, without inner list, posteriorly narrower. RV in interior view (Fig. 4 F) with marginal selvage, inner lamella without inner list, anteriorly broader than posteriorly; ventral margin slightly sinuous in front of mid-length, posterior part with large flange. A 1 (Fig. 5 A): first segment with a long dorsal, subapical seta (reaching mid-length of the next segment), with two long ventro- apical setae, no proximal Wouters organ. Second segment slightly wider than long, with one short dorso-apical seta and a short Rome organ. Third segment bearing two (one shorter dorso-, one long ventro-) apical setae, the former reaching tip of next segment, the latter reaching tip of fifth segment. Fourth segment with two long dorsal setae and two shorter ventral setae (the longer one reaching beyond tip of fifth segment, the shortest with length c. 2 / 3 of next segment. Fifth segment dorsally with two long setae, ventrally with two (one long, one short) setae, the short one reaching beyond half of terminal segment. Penultimate segment with four long setae. Terminal segment with three (two long, one short) apical setae and an aesthetasc y a, the latter slightly shorter than the short apical seta. A 2 (Fig. 5 B): exopodite with three (one long, two short) setae, the long one reaching beyond tip of first endopodal segment. First endopodal segment with six (five long, one shorter) natatory setae, the shorter seta reaching c. 1 / 3 of next segment, aesthetasc Y long, ventro-apical seta long (reaching beyond tip of terminal segment). Penultimate segment undivided, distally with three serrated claws (length c. 1.2 times penultimate segment) and with long aesthetasc y 2 (reaching beyond tip of terminal segment), z 1 – z 3 setae long but not reaching tips of claws; this segment medially with two (one long, one shorter) dorsal setae (length of short one c. 2 / 3 of that of long one) and four ventral setae of unequal length (t 1 – t 4), the shortest one reaching tip of segment. Terminal segment with two serrated claws (GM and Gm), a long g-seta and an aesthetasc y 3, length of Gm c. 2 / 3 of that of GM, length of aesthetasc y 3 c. 2 / 3 of that of accompanying seta. Md-palp (Fig. 5 C): first segment with two large setae set with setulae (S 1 and S 2), one slender, long seta and a long, smooth α-seta, the latter basally widened, length c. half of that of large setae. Second segment dorsally with three unequal long apical setae, length of the shortest c. 45 % of that of the longest; ventrally with a group of three hirsute setae, one shorter hirsute seta and the β-seta, the latter plumose, cone-shaped and with pointed tip. Penultimate segment consisting of three groups of setae: dorsally with a group of four long, but unequal subapical setae; laterally with an apical γ – seta and three further apical setae, the former stout, hirsute, long (length c. 2 times of that of the terminal segment); ventrally with two (one long, one short) apical setae, length of the short one c. half the length of terminal segment. Terminal segment (Fig. 5 D) bearing three claws and three setae. Mx 1 (Fig. 6 A) with a two-segmented palp, three endites and a large branchial plate. Basal segment of palp with a group of five long, but unequal apical setae and two (one long, one shorter) subapical setae, the shorter one reaching slightly beyond mid-length of terminal segment; terminal segment elongated, with three claws and tree setae. Third endite with two large bristles, one distally serrated, another one smooth. Sideways-directed bristles on first endite unequal, length of short one c. 2 / 3 of that of long one. T 1 (Fig. 6 B – C): protopodite with two short a-setae, a long b seta and a d-seta, distally with 14 (10 apical, four subapical) long, hirsute setae. Endopodite a weakly built palp with three unequal apical setae. T 2 (Fig. 6 D) with d-setae, length of d 2 c. 3 / 4 of that of d 1. Second segment with one long apical e-seta reaching half of penultimate segment. Penultimate segment divided, proximal segment (a) bearing one long apical f-seta (reaching beyond tip of terminal segment), distal segment (b) with a pair of apical setae (one long g-seta, one spine-like). Terminal segment with two (one dorsally, one ventrally) apical h 1 and h 3 setae and a serrated claw (h 2). T 3 (Fig. 6 E) a cleaning limb. First segment with long d 1, d 2, d 3 setae. Second segment with one markedly long apical e-seta (length almost equal of that of next segment). Third segment with medially one long f-seta (reaching beyond tip of segment). Terminal segment with an apical pincer and three setae, one short h 1 seta, one claw-like h 2 seta and one long reflexed subapical h 3 seta, length of the latter c. 7 / 10 of that of third segment. CR (Fig. 6 F) stout, with ventral margin strongly serrated, Ga and Gp long, serrated, length of Ga slightly less than half of that of ramus, length of Gp c. 2 / 3 of that of Ga; Sa long (slightly longer than Gp), Sp long (reaching beyond tip of ramus). CR attachment (Fig. 6 G) stout, with Triebel’s loop at middle of distal part of main branch, db short, vb welldeveloped. Male unknown. FIGURE 6. Strandesia pholpunthini n. sp. A. Mx 1; B. T 1; C. T 1; D. T 2; E. T 2; F. T 3; G. caudal ramus; H. caudal ramus attachment. Scale bar = 50 Μm for A – B; 100 Μm for C – D, F – H; 58 Μm for E.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9653FFA62F9054ABFB75FEC4.taxon	discussion	Remarks. Most of the species in Strandesia and indeed in all genera of the subfamily Cypricercinae have the LV overlapping the RV on all sides. The combination of a LV overlapping a RV anteriorly and a RV overlapping a LV posteriorly is seen in few Strandesia species, such as Strandesia obtusata (Sars, 1901), Strandesia mulargiae Anichini, 1967, and Strandesia caudata Klie, 1939. However, the morphology of carapace in dorsal view is different in the new species; for example, the posterior part of the RV is evenly round without valve compression in S. obtusata, S. mulargiae, and S. caudata while it is compressed in Strandesia pholpunthini n. sp.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9658FFA62F905565FD97FCF1.taxon	materials_examined	Type species O. voeltzkowi G. W. Müller, 1898	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9658FFA62F905565FD97FCF1.taxon	diagnosis	Diagnosis (modified from Karanovic 2012): carapace strongly ornamented, penultimate segment of A 2 divided, third endite of Mx 1 with four or five large apical setae (ZAHNBORSTEN), respiratory plate of T 1 reduced, T 2 with seta d 2, terminal segment of T 3 clearly separated from penultimate segment and with three setae, one seta (h 2) transformed into claw, CR whip-like.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9658FFBE2F905483FD4BF855.taxon	materials_examined	Holotype. Male, soft parts dissected in glycerine on a sealed slide, valves stored dry in a micropalaeontological slide (MSU-ZOC. 119). Allotypes. Female, stored like the holotype (MSU-ZOC. 120). Paratypes. Two dissected males (MSU-ZOC. 121 – 122) stored like the holotype, three undissected males (MSU-ZOC. 123 – 125) stored dry in micropalaeontological slides, two dissected females (MSU-ZOC. 126 – 127) stored like the holotype, three undissected females (MSU-ZOC. 128 – 130) stored dry in a micropalaeontological slide and c. 20 males and 50 females in 70 % EtOH. Repository. The holotype, allotype and all paratypes are deposited in the Natural History Museum, MSU (Mahasarakham, Thailand). Type locality. Huay Yang Reservoir, Sakon Nakhon Province. Material collected on 21 December 2011, coordinates: 16 ° 56 ΄ 12 ˝ N and 104 ° 10 ΄ 42 ˝ E. Accompanying ostracod fauna: Thaicythere srisumonae Savatenalinton et al., 2008, Physocypria sp., Stenocypris sp.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9658FFBE2F905483FD4BF855.taxon	etymology	Etymology. The new species is named after the beak-like front, forming a rostrum.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9658FFBE2F905483FD4BF855.taxon	diagnosis	Diagnosis. Carapace in lateral view subovate with evenly arched dorsal margin and large eye tubercles; valve surface strongly ornamentated and set with large granulations and pits (each with a hole in the centre); LV overlapping RV anteriorly, ventrally, and posteriorly; carapace in dorsal view triangular with beak-like anterior part and RV and LV margins subequal and curved rightward. Terminal segment of A 1 divided, Rome organ small, Wouters organ present; third endite of Mx 1 with five large serrated bristles; T 2 with long, slim seta d 2, seta d 1 absent, penultimate segment divided, terminal claw with distal furcated; CR whip-like with short base with parallel sides; right prehensile palp with apical long spine and large protrusion on distal margin of first segment, overlapping the second segment; left prehensile palp with long spine and smaller protrusion on distal margin; hemipenis with dorsal lobe elongated, with blunt end, ventral lobe broadly rounded. Differential diagnosis. Oncocypris rostrata n. sp. is similar to Oncocypris debundshae Green, 1973 and Oncocypris schoutedeni Klie, 1938. The new species can be distinguished from O. debundshae and O. schoutedeni by the shape of carapace in dorsal view, the bigger eye tubercles, the external valve ornamentation, the chaetotaxy of the limbs, especially the divided terminal segment of A 1, and the morphology of prehensile palps and the hemipenis. The beak-like anterior part of carapace in dorsal view has been found in O. rostrata n. sp. and O. debundshae. However, the feature of this part is different: the RV margin projects in front of LV margin in O. debundshae while margins of RV and LV are subequal and curved rightward in O. rostrata n. sp.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9658FFBE2F905483FD4BF855.taxon	description	Measurements (mean, in µm). Female, LV (n = 3), L = 574, H = 405; RV (n = 3), L = 579, H = 398; Carapace (n = 3), L = 554, W = 524. Male, LV (n = 3), L = 517, H = 353; RV (n = 3), L = 517, H = 352; Carapace (n = 5), L = 523, W = 454. Ecology. Oncocypris rostrata n. sp. is thus far only known from its type locality, a reservoir. It occurred at a pH of 7.54, a temperature of 24.3 ° C and DO of 4.6 mg / l. Description of female. Carapace in lateral view (Fig. 7 A) subovate (length 1.5 times width), greatest height situated c. mid-length, dorsal margin evenly arched, anterior margin broadly rounded, posterior margin more narrowly rounded; eye tubercle large and prominent, situated in front of mid-length and at one third of height; valve surface strongly ornamentated, set with large pustules and large pits (each pit with a hole and a seta in the centre) (Fig. 7 B). Carapace in dorsal view (Fig. 7 C) triangular, greatest width situated at c. two thirds of length, anterior part beak-like with right and left valve margins subequal and curve rightward, LV overlapping RV anteriorly, ventrally and posteriorly; both anterior and posterior valve margins with septae between external and internal calcified lamellae, creating a row of ‘ chambers’ (lunules) along valve margins. LV in interior view (Fig. 7 E) with a flange anteriorly and posteriorly, anteriorly broader than posteriorly, no setae on flanges (Fig. 8 B), lunules on anterior and posterior parts situated between flange and selvage, calcified inner lamella narrow, with an inner list; selvage not running parallel to valve margin at postero-ventrally part. RV in interior view (Fig. 7 F) with large flange anteriorly, wider than LV, setae on flange (Fig. 8 C), calcified inner lamella narrow, with an inner list, frontal inner lamella with lunules situated between selvage and inner list. A 1 (Fig. 10 A): first segment with a long dorsal, subapical seta (reaching middle of next segment), with two long, unequal ventro-apical setae and a proximal Wouters organ. Second segment wider than long, with one short dorso-apical seta and a small Rome organ, the former reaching slightly beyond tip of segment. Third segment bearing two (one dorso-, one ventro-) apical setae, the former almost reaching tip of next segment, the latter spinelike. Fourth segment with two long dorsal setae and two shorter ventral setae (the longer one reaching slightly beyond tip of the next segment, the shortest reaching the middle of next segment). Fifth segment dorsally with two long setae, ventrally with two (one long, one shorter) setae, the shorter one reaching middle of terminal segment, the long one reaching beyond tip of terminal segment. Penultimate segment with four long setae. Terminal segment with three (two long, one short) apical setae and an aesthetasc y a, the latter c. twice as long the short apical seta. A 2 (Fig. 10 B): exopodite with three (one long, two short) setae, the long one reaching middle of penultimate segment. First endopodal segment with natatory setae long, length of shortest seta reaching c. 1 / 3 of penultimate segment, aesthetasc Y long, ventro-apical seta long (reaching beyond tip of terminal segment). Penultimate segment divided, distally with three long serrated claws (length c. 2.6 - 2.7 times penultimate segment) and with long aesthetasc y 2 (reaching slightly beyond tip of terminal segment), z 1 – z 3 setae long; this segment medially with two (one long, one shorter) dorsal setae (length of short one c. 3 / 4 of that of long one) and four (three long, one short) ventral setae (t 1 – t 4). Terminal segment with two serrated claws (GM and Gm), long g-seta and an aesthetasc y 3, length of Gm c. 2 / 3 of that of GM, length of aesthetasc y 3 c. 5 / 6 of that of accompanying seta. Md-palp (Fig. 10 C): first segment with two large setae, one slender, long seta and α-seta with broad base and flagellum-like tip. Second segment dorsally with three hirsute, unequal long apical setae; ventrally with a group of three hirsute setae, one shorter seta and the β-seta, the latter plumose, cone-shaped and with pointed tip. Penultimate segment consisting of three groups of setae: dorsally with a group of four long, but unequal subapical setae; laterally with an apical γ – seta and three further hirsute apical setae, the former stout, hirsute, long (length c. 1.5 times of that of the terminal segment); ventrally with two (one long, one short) subapical setae, the long one hirsute, the short one slightly less than half the length of the terminal segment. Terminal segment bearing three claws and three setae. Mx 1 (Fig. 11 A) with a two-segmented palp, three endites and a large branchial plate; basal segment of palp with a group of five long, but unequal apical setae and two (one long, one short) subapical setae, the short one reaching beyond tip of basal segment), terminal segment elongated (length c. twice the width), with two claws and two setae. Five large bristles (ZAHNBORSTEN) on third endite distally serrated. Sideways-directed bristles on first endite unequal, length of short one c. half that of long one. T 1 (Fig. 11 B): protopodite with two a-setae, distally with 10 long, hirsute, apical setae. Endopodite a weakly built palp with three distal setae (not shown). T 2 (Fig. 11 C) with long, slim d 2, d 1 absent. Second segment with one long apical e-seta (length c. half of that of penultimate segment). Penultimate segment divided, proximal segment (a) bearing one long apical f-seta (reaching beyond tip of terminal segment), distal segment (b) with short apical g-seta. Terminal segment with two (one dorsally, one ventrally) apical h 1 and h 3 setae and a claw (h 2), the latter with furcate end and outer margin uneven distally (c. 1 / 3 of length of claw) (Fig. 11 D). T 3 (Fig. 11 E) a cleaning limb. First segment with long d 2 and dp setae and short d 1 seta. Second segment with one long apical e-seta (length c. half of next segment). Third segment with medially one long f-seta (reaching tip of the segment). Terminal segment with three setae (h 1 - h 3), one short h 1 seta, one claw-like h 2 seta and one long reflexed subapical h 3 seta, length of the latter c. 4 / 5 of that of third segment. Caudal ramus (Fig. 11 F) whip-like with wide base, with short proximal seta and distal long seta. Description of male. Carapace and valves (Fig. 9) as in female, but somewhat smaller. All limbs as in female, except for the last two segments of A 2 (Fig. 12 A – B) and T 1 (Fig. 12 C – D). Setae z 1 and z 2 of the penultimate segment of A 2 transformed into claws; claws G 1 and G 3 reduced to setae; Gm on terminal segment of A 2 reduced, appearing smaller and shorter (length c. 0.4 time of that of GM). T 1 with asymmetrical prehensile palps (endopodites). Right prehensile palp (Fig. 12 C) with first segment bearing long apical spine and large protrusion at mid-length of distal margin towards the hook-like second segment. Left prehensile palp (Fig. 12 D) with first segment bearing a long spine and smaller protrusion on distal margin; second segment narrow and pointed. Hemipenis (Fig. 12 E) with ls subtriangular, blunt end, ms broad rounded, internal postlabyrinthal spermiduct with three additional loops. Zenker organ (Fig. 12 F) elongated, length c. 4.3 times width, set with c. 17 chitinous spiny whorls.	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
DA01647C9658FFBE2F905483FD4BF855.taxon	discussion	Remarks. Oncocypris rostrata n. sp. is the first record of this genus in Thailand. The constriction in front of the eye tubercles makes the anterior part of the carapace in dorsal view look like a rostrum. This aspect is also illustrated in some other Oncocypris species, but never this clear. Although the knee segment of T 2 was not drawn in several congeneric species, the presence of the d 2 and the absence of the d 1 setae in several other Oncocypris species, seems to indicate that this is a generic character. FIGURE 13 Distribution map of the genus Oncocypris G. W. Müller, 1898 (× O. bhatiai Battish, 1982; ♦ O. chappuisi Klie, 1939; + O. debundshae Green, 1973; ♦ O. euglypha Rome, 1962; ● O. muelleri (Daday, 1910); ˔ O. schoutedeni Klie, 1938; ⋅ O. voeltzkowi G. W. Müller, 1898; ★ O. rostrata n. sp.).	en	Savatenalinton, Sukonthip (2015): On three new species of non-marine ostracods (Crustacea: Ostracoda) from Northeast Thailand. Zootaxa 3914 (3): 275-300, DOI: 10.11646/zootaxa.3914.3.3
