Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; maxillary barbels distinctly fringed, longer than head, unbranched and lacking tubercles, but with a broad, long and dark basal membrane; outer mandibular barbels with few simple, short ramifications, inner mandibular barbels with tuberculate, subdivided branches; mandibular teeth moderately developed, numbering 45-64 (64 in the holotype); denticulations on pectoral-fin spines weaker on outer than on inner margin; dorsal-fin spine smooth anteriorly; first ray of dorsal and pectoral fins, as well as both caudal-fin lobes extended into filaments; humeral process pointed, granulose, its ventral margin keeled and bearing 3 backward-pointing spines (sometimes only 1 or 2 in young individuals); adipose fin normally developed and distinctly separated from rayed dorsal fin (Ref. 57223).

Coloration: ground colour uniformly greenish-yellow; series of black spots sometimes present on fins in young individuals (Ref. 57223).