Secondary sex characters of Chinese frogs and toads.

v.22:no.2(1936)

A trematopsid skull from the Lower Permian, and analysis of some characters of the dissorophoid (Amphibia, Labyrinthodontia) otic notch / John R. Bolt.

v.30:no.3(1974)

Arctoid genetic characters as related to the genus Parictis / [by] John Clark -- and Thomas E. Guensburg, University of Illinois. [Patricia M. Williams -- editor.]

v.26:no.1(1972)