A tentative classification of the palearctic unionids.

v.24:no.11(1940)

A geographic classification of Neotropical mammals.

v.36:no.6(1958)

On the classification of the histerid beetles, by Rupert L. Wenzel.

v.28:no.2(1944)

Secondary sexual characters and ecological competition.

v.34:no.6(1952)

Ecological notes on the fish fauna of a coastal drainage of North Borneo.

v.37:no.3(1955)

Morphological and ecological variation in the flying lizards (Genus Draco) / Robert F. Inger.

n.s. no.18(1983)

Evolution and classification of the Osteostraci. The exoskeleton of early Osteostraci. / Robert H. Denison --

v.11:no.3-4(1951)

Revised classification of Pteraspididae with description of new forms from Wyoming / [by] Robert H. Denison --

v.20:no.1(1970)

Investigation of the classification of the rodent genus Eumys from the Middle Oligocene of the Big Badlands of South Dakota using multivariate statistical analysis / Sue Vilhauer Rosser --.

v.39:no.3(1978)

Current classification and family-group names in Staphyliniformia (Coleoptera) / Alfred F. Newton, Jr., Margaret K. Thayer.

n.s. no.67(1992)

The family Diadectidae and its bearing on the classification of reptiles / Everett Claire Olson --

v.11:no.1(1947)