Schistura porthos Kottelat 2000

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).

Schistura porthos is a species of ray-finned fish in the stone loach genus Schistura from the Mekong basin; the Nam Ngiap, Nam Khan, Nam Xuang, Nam Ou and Nam Tha drainages in northern Laos and the Luosuojiang drainage in Xishuangbanna, Yunnan. The specific name comes from one of Alexandre Dumas' The Three Musketeers, Aramis as do that of two other Schistura species endemic to the Nam Ou basin, S. athos and S.aramis.