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Sewellia speciosa Roberts, 1998 |
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photo by
Germeau, G. |
| Family: | Gastromyzontidae (Hillstream loaches) | |||
| Max. size: | 5.37 cm SL (male/unsexed) | |||
| Environment: | demersal; freshwater | |||
| Distribution: | Asia: Se Kong drainage in Laos and Vietnam. | |||
| Diagnosis: | Vertebrae: 31-32. Differs from other species of Sewellia by the following combination of characters: body spotted, without dark stripes; without concentric band on paired fins; pelvic fin reaching to anal-fin origin; pelvic-fin origin below dorsal-fin origin; small soft elevated patches of fine tubercles on first pectoral-fin rays in males; tubercles on simple pectoral-fin ray not enlarge; absence of cavity around mouth; absence of skin-fold between oropectoral membrane and ventral surface of head; and 50-60 lateral line scales (Ref. 40433). | |||
| Biology: | Inhabits rivers with rocky bottom, with gravel and stone and sometimes large boulders. River current is moderate to swift, but the gradient is moderate. | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 19 February 2011 Ref. (130435) | |||
| Threat to humans: | harmless | |||