Schistura porthos Kottelat, 2000

Family:  Nemacheilidae (Brook loaches)
Max. size:  8.6 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Asia: Mekong in Nam Ngiap, Nam Khan, Nam Xuang, Nam Ou and Nam Tha basins in northern Laos.
Diagnosis:  Body massive, head broadly triangular from above; hump in front of dorsal origin in individuals over 60 mm SL; caudal peduncle very deep, 0.9-1.1 times longer than deep; anterior nostril pierced on front side of a flap; processus dentiformis present; lower lip interrupted medially; a conspicuous hard keel on back between dorsal and caudal fins and along lower edge of caudal peduncle; lateral line complete; anus about 1-2 eye diameters in front of anal-fin origin; 8.5 branched dorsal-fin rays; 5.5 branched anal-fin rays; caudal fin emarginate, with 9+8 branched rays; axillary pelvic lobe present; top of head vermiculated; body with 9-17 bars, much wider than interspaces, of quite regular width but irregularly organized, often fused two by two along dorsal midline, or upper or lower part missing; black bar at caudal-fin base complete, wide, with anterior and posterior projections where it reaches dorsal and ventral midlines; dorsal fin with 2-3 blotches along base; dark marks on fin rays of all fins (Ref. 36949).
IUCN Red List Status: Least Concern (LC); Date assessed: 09 July 2011 Ref. (126983)
Threat to humans:  harmless
Country info:  Known only from Nam Ngiap, Nam Khan, Nam Xuang, Nam Ou and Nam Tha basins of the Mekong, northern Laos (Ref. 36949). Also Ref. 43281.

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 Not for publication.