Protopithecus, in Brazilian caves, i. 144
ii. [178]
Protopterus, ii. [458]
Protornis, European Eocene, i. 162
Prototomus, N. American Tertiary, i. 134
Prototroctes, ii. [446]
Psalidoprogne, ii. [281]
Psaltria, ii. [266]
Psaltriparus, ii. [266]
Psammodromus, ii. [391]