Akysis bilustris Ng, 2011
Akysis bilustris
photo by Ng, H.H.

Family:  Akysidae (Stream catfishes), subfamily: Akysinae
Max. size:  2.53 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Asia: Laos. Known only from two geographically proximate localities in the Xe Kong drainage, a major subdrainage of the Mekong River in southern Laos (Ref. 87997).
Diagnosis:  Akysis bilustris is distinguished from congeners by a combination of the following characters: eye diameter 14.0–17.5% HL; serrae on posterior margin of pectoral spine 2–3 and longer than half width of spine, pectoral fin reaching to or overlapping pelvic-fin base (length 24.5–29.3% SL), adipose-fin base length 14.3–18.3% SL, body depth at anus 11.4–13.8% SL, caudal-peduncle length 19.6–23.4% SL; caudal-peduncle depth 6.7–9.2% SL; caudal fin emarginate, and vertebrae 30–31 (Ref. 87997).
Biology: 
IUCN Red List Status: Data deficient (DD); Date assessed: 15 November 2011 Ref. (130435)
Threat to humans:  harmless


Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.