Taxonomic assessments of some Cyprinotinae Bronstein, 1947 species (Crustacea: Ostracoda) from Japanese and Korean rice fields, including (re-) descriptions of six species and a review of the type species of the subfamily Author Smith, Robin James Author Chang, Cheon Young text Zootaxa 2020 2020-06-15 4795 1 1 69 journal article 10.11646/zootaxa.4795.1.1 1175-5326 3896294 FC5E4D2F-5C9B-47B3-BE97-FB52C9D6A0CB Hemicypris barbadensis Broodbakker, 1983 ( Figs 4I & J , 25G ) 1983 Hemicypris barbadensis n. sp. —Broodbakker: 146–152, 154–156, Figs 1 , 5 g-n, 7, 8, 9a, Tables I, II, III, V. 1984 Hemicypris barbadensis— Broodbakker: 34, 47. 1994 Hemicypris barbadensis Broodbakker, 1983 —Martens & Behen: 27, 44. 1994 Hemicypris barbadensis— Little & Hebert: 552, table 1. 1997 Hemicypris barbadensis Broodbakker, 1983 —Holmes: 140. 2000 Hemicypris barbadensis Broodbakker, 1983 —Maddocks: Appendix 2. 2004 Hemicypris kawagaensis [sic] sp. nov.—Okubo: 27–28, figs 12 c–f (fide herein). 2008 Hemicypris barbadensis Broodbakker, 1983 —Savatenalinton & Martens: Table 1 . 2008 Hemicypris kawagaensis [sic] Okubo, 2004 —Savatenalinton & Martens: Table 1 . 2011 Hemicypris barbadensis Broodbakker, 1983 —Martens & Savatenalinton: Table 2 . 2011 Hemicypris kawagaensis [sic] Okubo, 2004 —Martens & Savatenalinton: Table 2 . 2012 H. barbadensis Broodbakker 1983 b—Karanovic: 437, 441. 2012 H. kawagaensis [sic] Okubo 2004 —Karanovic: 438, 441. 2013 Hemicypris barbadensis Broodbakker, 1983 —Martens et al. : No page numbers. 2014 Hemicypris barbadensis Broodbakker, 1983 —Valls et al. : 3, 5–8, fig. 2 a–f, Table 2 . 2017b Hemicypris barbadensis— Savatenalinton: 510, 511. 2017 H. barbadensis —Rasouli & Aygen: 430. 2018 Hemicypris kawagaensis [sic] Okubo, 2004 nomen nudum—Smith et al. : Appendix. 2018 Hemicypris barbadensis Broodbakker, 1983 —Smith et al. : Appendix. 2019 Hemicypris barbadensis Broodbakker, 1983 —Meisch et al. : 64. Material examined. JAPAN • 1 ♀ , “ Hemicypris kawagaensis 010810 ”, valves and appendages mounted on a glass slide in an unknown matrix; [ Kagawa Prefecture ]; Ichiro Okubo leg.; LBM 1430009514 . Remarks. This species has been reported from Japan as Hemicypris kawagaensis Okubo, 2004 nomen nudum. The species name is most probably a misspelling of kagawaensis , as the specimens were from Kagawa Prefecture , and the name is spelt Hemicypris kagawaensis in the figure captions of Okubo (2004) . As there was no designation of type material, and no information as to where the specimens are deposited (contravening sections 16.4.1 and 16.4.2 of the ICZN code), this species is a nomen nudum . An adult female specimen of Hemicypris kagawaensis nomen nudum provided by Ichiro Okubo and examined for this study shows a strong resemblance to Hemicypris barbadensis . In particular, the lateral outline of the valves, heavily pitted carapace, and distinctively curved caudal rami of Hemicypris kagawaensis are very similar to those of Hemicypris barbadensis ( Figs 4I & J , 25G ), although the Japanese specimen is slightly higher (height/length of left valve 0.64) than the specimen figured by Broodbakker (1983) (height/length of left valve 0.61). The Kenyan species Hemicypris aurita (Klie, 1939) is also very similar ( Broodbakker 1983 ; 1984 ), differing only in the antero-dorsal margin (slightly concave in Hemicypris aurita ) and the Zahnborsten of the third endite of the maxillula (both serrated in Hemicypris aurita , one serrated, one partly serrated in Hemicypris barbadensis ). Herein, Hemicypris kagawaensis nomen nudum is considered to be a junior synonym of Hemicypris barbadensis . The valves of the specimen examined are mounted in an unknown medium on a glass slide and therefore could not be photographed by SEM. Distribution and ecology. This species has only been reported once from Japan ; a few specimens were found in a rice field in Kagawa Prefecture on the island of Shikoku ( Okubo 2004 ). Elsewhere it is known from Barbados , Jamaica and Spain ( Broodbakker 1983 ; Little & Hebert 1994 ; Holmes 1997 ; Valls et al. 2014 ). In Barbados it was found in a temporary pool of rainwater, semi-permanent pools, a pond, and a pool connected to a spring, on clayish soils ( Broodbakker 1983 ). The Jamaican specimens were collected from a small permanent lake, with submergent and emergent macrophytes around the edges, and with a substrate of clayey mud; the lake may be in the zone of mixing of fresh and saline groundwaters ( Holmes 1997 ). In Spain it is considered an invasive species, found in rice fields near Albufera National Park near Valencia ( Valls et al. 2014 ).