Pseudobagarius subtilis (Ng & Kottelat, 1998)
photo by WWF Thailand-Canon / Vidthayanon, C.

Family:  Akysidae (Stream catfishes), subfamily: Akysinae
Max. size:  4 cm SL (male/unsexed)
Environment:  benthopelagic
Distribution:  Asia: known only from the Mekong basin in Laos and Thailand.
Diagnosis:  Dorsal soft rays (total): 6-6; Anal soft rays: 9-9; Vertebrae: 35-36. Distinguished from all its congeners by the following unique combination of characters: slender body (body depth at anus 11.9-13.5% SL); depth of caudal peduncle 5.5-5.8% SL; extremely narrow head ( head width 17.5-18.7% SL); small and close set-eyes (eye diameter 7-9% HL; interorbital distance 33-38% HL); short nasal barbels (23-30% HL); possession of 35-36 total vertebrae; presence of 1+ 3 gill rakers on the first branchial arch; 5-6 serrae on the posterior edge of the pectoral spine; 8 branchiostegal rays; caudal fin strongly forked with pointed lobes (Ref. 30226). Body brown with 2 dark patches along dorsum at base of dorsal and adipose fins (Ref. 43281).
Biology: 
IUCN Red List Status: Data deficient (DD); Date assessed: 10 February 2011 Ref. (123251)
Threat to humans:  harmless
Country info:   
 

Entered by: Sampang-Reyes, Arlene G. - 10.05.99
Modified by: Torres, Armi G. - 06.05.11

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