Permo-Carboniferous fresh water burrows / Everett C. Olson -- and Kathryn Bolles --.

v.33:no.15(1975)

Monograph of the North American Astacidae / by Dr. Hermann A. Hagen

no.3 (1870)

A revision of the Astacidæ / by Walter Faxon.

v.10:no.4 (1885)

Notes on the crayfishes in the United States National museum and the Museum of comparative zoölogy : with descriptions of new species and subspecies, to which is appended a catalogue of the known species and subspecies / by Walter Faxon.

v.40:no.8 (1914)