References

Peters, S. E.; Kamel, L. T.; and Bashor, D.P. 1996. Hopping and Smimming in the Leopard Frog, Rana pipiens: I. Step Cycles and Kinetics. Journal of Morphology 230: 1-16.

Sidor, C. A.; and Blackburn, D. G. 1998. Effects of Testosterone Administration and Castration on the Forelimb Musculature of Male Leopard Frogs, Rana pipiens. The Journal of Experimental Zoology 280: 28-37.

Paltz, J. E.; Lathrop, A.; Hofbauer, L.; and Vraden burg, M. 1997. Age Distribution and Longevity in the Ramsey Canyon Leopard Frog, Rana subaquavocalis. Journal of Herpetology 31, 4: 552-557.

Heinen, J. T.; and Hammond, G. 1997. Antipredator Behaviors of Newly Metamorphosed Green Frogs (Rana clamitans) ands Leopard Frogs (Rana pipiens) in Encounters with Eastern Garter Snakes (Thamnophis s. sirtalis). American Midland Naturalist. 137, 1: 136-144.

Merrell, David J. 1977. Life History of the Leopard Frog, Rana pipiens, in Minnesota. Bell Museum of Natural History. Mnneapolis, Minnesota. 23 pp.

Cuellar, Hector Saul. 1968. Genetic Compatibility of Rana areolata with Southwestern members of the Rana pipiens complex. Texas Tech university. Lubbock,Texas. 35 pp.

Mecham, John S.; Littlejohn, Murray J.; Oldham, Robert S.; Brown, Lauren E.; and Brow, Jill R.1978. A New Species of Leopard Frog ( Rana pipiens complex) from the Plains of the Central United States. Museum of Texas Tech University. Lubbock, Texas. 11 pp.

Conant, Roger 1975. A Field Guide to Reptiles and Amphibians of Eastern/Central North America. Second edition. Houghton Mifflin Company Boston. 413pp.

Dixon, James R. 2000. Amphibians and Reptiles of Texas. Second edition. Texas A&M University Press College Station. 421 pp.