Gastromyzon stellatus Tan, 2006
photo by Petersen, P.

Family:  Gastromyzontidae (Hillstream loaches)
Max. size:  5.24 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: Sarawak, Sadong and Lupar River basins in Sarawak, Malaysia.
Diagnosis:  Dorsal soft rays (total): 8-8; Anal soft rays: 4-4; Vertebrae: 31-32. Can be distinguished from its congeners by having the following unique combination of characters: a dark brown body with numerous yellow fine spots and blotches, head dark brown with numerous yellow spots; sublacrymal groove visible from side; secondary rostrum absent; post-oral pouch absent; subopercular groove absent; gill slit vertical; a truncate snout when viewed dorsally; abdomen without scales; lateral line scales 66-69; pelvic fin not overlapping level of 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: 11 January 2019 (B1ab(iii)) Ref. (130435)
Threat to humans:  harmless


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