Encheloclarias medialis, a new catfish from southern Borneo (Teleostei: Clariidae)

摘要

Encheloclarias medialis, new species, is described from the Mentaya River drainage in southern Borneo. It is distinguished from other Southeast Asian congeners in having the combination of 48 anal-fin rays, anal and caudal fins confluent only at their bases, gently curving dorsal margin of adipose fin, 40 postanal vertebrae, 2 indistinct serrations on the posterior margin of the pectoral spine, 7 rakers on the first ceratobranchial, body depth at anus 9.8 % SL, head length 19.2 % SL, head width 13.7 % SL, and interorbital distance 42 % HL.