Sewellia Pterolineata (Sewellia pterolineata), first described by Roberts, 1998 is a tiny fish in the family Balitoridae (order Cypriniformes). Adults typically reach 4.40 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Endangered.
Vertebrae: 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 .: elongated.
Behavioural data for Sewellia Pterolineata is currently being reviewed.
Freshwater; demersal. Tropical
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