SOULE, Michael & SLOAN, Alan J. 1966.
Biogeography and distribution of the reptiles and amphibians on islands in the Gulf of California, Mexico. 137-156 p.
Transactions of San Diego Society of Natural History (14:11).

GRISMER, L. Lee. 1990.
A New Long-nosed Snake (Rhinocheilus lecontei) from Isla Cerralvo, Baja California Sur, Mexico. 16 September 1990. 7 p. illus (color).
Proceedings of the San Diego Society of Natural History #4.

SIMOVICH, Marie A., SASSAMAN, Clay A. & CHOVNICK, Amy.
Post-mating Selection of Hybrid Toads (Scaphiopus multiplicatus and Scaphiopus bombifrons), 31 January 1991. 6 p. tables, figs.
Proceedings of the San Diego Society of Natural History #5.