Dinoperca is a genus in the family Dinopercidae (cavebasses). It contains the single species Dinoperca petersi, the lampfish, which is native to reefs of the western Indian Ocean, where it can be found down to depths of 50m (160feet). It prefers to inhabit the spaces under ledges, as well as the mouths of caves. This species grows to 75cm (30inches) in total length. It is of minor importance to local commercial fisheries, but is popular as a sport fish. The identity of the person honoured in the specific name is not stated but Day thanks "Professor Peters" for his assistance in identifying the type who was Director of the Berlin Museum, this refers to Wilhelm Peters (1815-1883).[1]