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Sewellia pterolineata Roberts, 1998 |
| Family: | Gastromyzontidae (Hillstream loaches) | |||
| Max. size: | 4.41 cm SL (male/unsexed) | |||
| Environment: | demersal; freshwater | |||
| Distribution: | Asia: Trac Khuc River, Vietnam. | |||
| Diagnosis: | Vertebrae: 34-34. The presence of 3 bold concentric bands on posterior part of pectoral fin differentiates this species from all other Sewellia species. Combination of characters unique to the species includes: cavity with deep post-oral skinfold around mouth; absence of dark stripes on body; origin of pelvic fin in front of the origin of dorsal fin; origin of pectoral fin behind corner of mouth; pelvic fin reaching origin of anal fin; branched pelvic-fin rays 8-16 with a row of individual serrae; absence of skin-fold between oropectoral membrane and ventral surface of head; 55 scales on lateral line (Ref. 40433). | |||
| Biology: | ||||
| IUCN Red List Status: | Endangered (EN); Date assessed: 05 September 2010 (A2c+3c; B1b(i,ii)) Ref. (130435) | |||
| Threat to humans: | harmless | |||