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Ptychochromis oligacanthus
Ptoni u0
Information
Range Onilahy River in southwestern in Madagascar.
Scientific Classification
Kingdom Animalia
Phylum Chordata
Class Actinopterygii
Order Perciformes
Family Cichlidae
Genus Ptychochromis
Species Ptychochromis oligacanthus
Conservation Status
EXSpecies
Extinct

Ptychochromis onilahy is an extinct species of cichlid in the family Cichlidae. It is endemic to the Onilahy River in southwestern in Madagascar. Despite several recent visits to the region, this species has not been recorded since 1962 when the only known five specimens were collected. It is listed as extinct by the IUCN (their initial rating was made before its official description, and therefore listed under the temporary name Ptychochromis sp. nov. 'Kotro'), but the Onilahy River system is large, and there is a small chance remnant populations exist in remote regions. This species can reach a length of 8.6 centimetres (3.4 in) SL.

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