Akysis clavulus Ng & Freyhof, 2003
Akysis clavulus
photo by Ng, H.H.

Family:  Akysidae (Stream catfishes), subfamily: Akysinae
Max. size:  3.5 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: Cai and Duc My River drainages in central Viet Nam.
Diagnosis:  Dorsal spines (total): 1-1; Dorsal soft rays (total): 5-5; Vertebrae: 32-34. Mouth subterminal; anterior and posterior nostrils separated by distance greater than length of nasal-barbel base; emarginate caudal fin; 3-5 serrae on posterior edge of pectoral spine; evenly-sloping ethmoidal region, sides of head gently curving; 1+ 5-6 gill rakers on first branchial arch; conical-shaped tubercles on head and body; lightly contrasting color pattern, and tubercles arranged in prominent longitudinal rows on ventral third of body (Ref. 52824).
Biology:  Found in hilly landscape streams and small rivers with a width of about 15-30 m (Ref. 52824). Occurs only in shallow riffles, hiding under coarse gravel and larger single stones (Ref. 52824).
IUCN Red List Status: Data deficient (DD); Date assessed: 17 December 2010 Ref. (130435)
Threat to humans:  harmless


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