Gastromyzon cranbrooki Tan & Sulaiman, 2006

Family:  Gastromyzontidae (Hillstream loaches)
Max. size:  7.55 cm SL (male/unsexed)
Environment:  demersal; freshwater; pH range: 6.6; depth range 0 - 1 m
Distribution:  Asia: presently known only from the Temburong River basin in Brunei Darussalam.
Diagnosis:  Dorsal soft rays (total): 7-7; Anal soft rays: 4-4; Vertebrae: 31-32. Distinguished from its congeners in possessing the following unique combination of characters: distinct secondary rostrum; complete postoral pouch; body brown, with 9-10 grey bars, head dorsum dark brown, with thin grey reticulate pattern; absence of subopercular groove; gill slit vertical; sublacrymal groove; snout truncate when viewed dorsally; abdomen without scales; 56-60 scales in lateral line; pelvic fin not overlapping anal fin origin, adpressed dorsal fin falling short of level of anal fin origin (Ref. 56228).
Biology:  Mostly found in rocky area with shallow flowing water less than 50 cm deep (Ref. 56228).
IUCN Red List Status: Least Concern (LC); Date assessed: 30 December 2018 Ref. (130435)
Threat to humans:  harmless

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