A new genus and three new species of nemacheilid loaches from northern Irrawaddy drainage, Myanmar (Teleostei: Cypriniformes)

作者：Kottelat Maurice^*

来源：Raffles Bulletin of Zoology, 2017, 65: 80-99.

• Cobitoidei
• Schistura
• Malihkaia
• Mali Hka

Malihkaia aligera, new genus, new species, is described from the Mali Hka River in the northernmost Kachin State, Myanmar. It is distinguished by strongly furrowed lips and a type of sexual dimorphism new in Nemacheilidae: the pectoral fin of males is greatly elongated as a 'wing', rigid and curled, with the first branched ray the longest, and with all branches and sub-branches adjacent and without membranes between them. Schistura nubigena, new species, is described from the same locality. It is distinguished by its colour pattern that evolves from 4 broad bars in juveniles about 20 mm SL, to a pattern of 8 bars that become coalescent along the flank and along the back, leaving a row of pale spots between them. Schistura wanlainensis, new species, is described from the Mon Lan Chaung, a tributary of the Mali Hka. It is distinguished by its unique colour pattern of a pale grey to whitish background with 18-32 narrow, regularly shaped black bars, extending from dorsal midline and reaching downwards to below level of pectoral fins, continuous over back with contralaterals, wider than interspaces anteriorly, narrower than interspaces on caudal peduncle; some of anterior bars fused at their dorsal extremity.

• 出版日期2017