Rhodeus pseudosericeus sp nov., a new bitterling from South Korea (Cyprinidae, Acheilognathinae)

Citation
R. Arai et al., Rhodeus pseudosericeus sp nov., a new bitterling from South Korea (Cyprinidae, Acheilognathinae), ICHTHYOL R, 48(3), 2001, pp. 275-282
Citations number
40
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Animal Sciences
Journal title
ICHTHYOLOGICAL RESEARCH
ISSN journal
1341-8998 → ACNP
Volume
48
Issue
3
Year of publication
2001
Pages
275 - 282
Database
ISI
SICI code
1341-8998(20010825)48:3<275:RPSNAN>2.0.ZU;2-C
Abstract
Anew bitterling, Rhodeus pseudosericeus sp. nov., is described on the basis of 31 specimens from five localities included in the Namhan River system, South Korea. The new species is distinguished from other Rhodeus species by the following combination of characters: branched dorsal fin rays 9-10 (mo de 9); branched anal fin rays 9-11 (mode 10); longest simple ray of dorsal fin strong and stiff, distally segmented; pelvic fin rays i, 6-7; iris of m ales blackish; dorsal and anal fins of males grayish in breeding season; ka ryotype with 2n = 48 (8m + 20sm + 20st). Rhodeus pseudosericeus sp. nov. is similar to Rhodeus sericeus sericeus in the number of pelvic fin and branc hed dorsal fin rays and the melanophores present on the dorsal fin membrane , but differs from the latter in having a greater body depth, more branched anal fin rays, fewer vertebrae, a lower number of scales in the lateral se ries, and differing male nuptial coloration.