Plecostomus, [595], [256], [292];
(Hypostoma) scales, [190];
P. commersonii, [192]
Plectognathi, [721] f., [543], [651], [205], [231], [275], [306], [354], [418]
Plectromus, [656]
Plectropoma, [659];
P. richardsoni, coloration, [165]
Plesiops, [659]
Plethodus, [549]
Pleuracanthidae, [440]