| Gastromyzontidae (Hillstream loaches) |
| 4.59 cm SL (male/unsexed) |
|
demersal; freshwater |
| Asia: Petagas, Padas and Mengalong river basins in western Sabah and Temburong River basin in Brunuei Darussalam. |
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Dorsal soft rays (total): 8-8; Anal soft rays: 4-4; Vertebrae: 29-32. Distinguished from its congeners in possessing the following unique combination of characters: angular gill slit; subopercular groove present and continuous to pectoral fin origin; body, including dorsum, brown; head dorsum with very fine cream reticulate pattern (similar to a cream head with brown spots and blotches); dorsal, caudal and anal fins blue in life; presence of sublacrymal groove; snout rounded when viewed dorsally; absence of secondary rostrum; absence of postoral pouch; scales absent on belly; 47-65 scales in lateral line (Sabah population: 56-65, Brunei population: 47-49); pelvic fin not overlapping level of anal fin origin, adpressed dorsal fin falling short of level of anal fin origin (Ref. 56228). |
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Least Concern (LC); Date assessed: 02 January 2019 Ref. (130435)
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| harmless |
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