Gastromyzon cornusaccus Tan, 2006

Family:  Gastromyzontidae (Hillstream loaches)
Max. size:  4.9 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: Sungari Kinarom in Sabah, Malaysia.
Diagnosis:  Dorsal soft rays (total): 8-8; Anal soft rays: 4-4; Vertebrae: 29-31. Can be distinguished from other species of the genus by possessing the following unique combination of characters: distinct secondary rostrum present; incomplete post-oral pouch present; pockets posterior to mouth corners; sublacrymal groove visible from side; body with plain uniform pattern when adult, with thick cream bars and blotches when juvenile, head dorsum plain; subopercular groove absent; gill slit vertical; sublacrymal groove present; a truncate snout when viewed dorsally; abdomen without scales; 55-61 scales on lateral line; pelvic fin just touching anal fin origin, adpressed dorsal fin not overlapping level of anal fin origin (Ref. 57871).
Biology:  Inhabits 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
Country info:   
 


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