Dowling, Herndon G. (Herndon Glenn), 1921-Cope, E. D. (Edward Drinker), 1840-1897.2005-10-062005-10-061969http://hdl.handle.net/2246/25856 p. : ill. ; 24 cm.Includes bibliographical references (p. 6).589818 bytesapplication/pdfen-USQL1 .A436 no.2375, 1969Tropidodryas -- Generative organs.TropidodryasHemipenis.Snakes -- South America -- Generative organs.Snakes -- South AmericaReptiles -- South America -- Generative organs.Reptiles -- South Americatext