Gastromyzon auronigrus Tan, 2006

Family:  Gastromyzontidae (Hillstream loaches)
Max. size:  5.53 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: Sungai Kinarom draining into Marudu Bay in Sabah, Malaysia.
Diagnosis:  Dorsal soft rays (total): 7-7; Anal soft rays: 4-4; Vertebrae: 30-30. Can be distinguished from its congeners by possessing the following unique combination of characters: body black, dorsum with 7 thin gold bars, side with gold bars complete or interrupted to form black blotches; head dorsum black with fine gold reticulate pattern when alive, when preserved the gold turns cream; absence of secondary rostrum; absence of a postoral pouch; gill slit vertical, subopercular groove absent; a rounded snout when viewed dorsally; presence of sublacrymal groove; abdomen without scales; lateral line with 64 scales; pelvic fin not overlapping anal fin origin, adpressed dorsal fin not overlapping level of anal fin origin (Ref. 57871).
Biology:  Recorded from fast flowing rocky streams (Ref. 84801).
IUCN Red List Status: Near Threatened (NT); Date assessed: 30 December 2018 (B1ab(i,ii,iii)+2ab(i,ii,iii)) Ref. (130435)
Threat to humans:  harmless


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