Pseudobagarius inermis (Ng & Kottelat, 2000)
Pseudobagarius inermis
photo by Ng, H.H.

Family:  Akysidae (Stream catfishes), subfamily: Akysinae
Max. size:  3.52 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: Xe Banghiang and Xe Kong drainages of the Mekong River drainages in southern Laos.
Diagnosis:  Dorsal spines (total): 1-1; Dorsal soft rays (total): 4-5; Anal soft rays: 8-11; Vertebrae: 31-35. Can be differentiated from its congeners in the following characters: lacking distinct serrae on posterior edge of pectoral spine; adipose fin with moderately long base, its length 13.4-16.7 %SL; eye diameter 7-10 %HL; length of nasal barbel 38-57 %HL; tip of snout noticeably in front of apex of lower jaw; large anterior and posterior nostrils present, closely situated together and separated only by base of nasal barbel; caudal fin with 7+7-8 rays; branchiostegal rays 6-7; a light yellow snout with a sharp contrasted edge; color pattern consisting of dorsal and ventral light yellow patches on the body that sometimes coalesce at mid-height of the flank (Ref. 37037).
Biology:  Akysis inermis has been found in various habitats from swift creek to riffles in streams and rapids in large rivers. All habitats had in common a stony (gravel to boulder) substrate and relatively swift current. In most of them the water was clear in the dry season (Ref. 37037).
IUCN Red List Status: Data deficient (DD); Date assessed: 10 February 2011 Ref. (124695)
Threat to humans:  harmless
Country info:   

Entered by: Boden, Gert - 19.02.01
Modified by: Torres, Armi G. - 13.07.07

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 Not for publication.

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