Puntius pleurotaenia Bleeker, 1863 Barbus pleurotaenia (Bleeker, 1863) The side-striped barb or black-lined barb (Systomus pleurotaenia) is a species of cyprinid fish endemic to Sri Lanka where it occurs in the catchment of the Kelani and Nilwala Rivers.

This species can reach a length of 16 centimetres (6.3 in) TL.

It is of minor importance to local commercial fisheries and can also be found in the aquarium trade.

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