Type specimens of amphibians and reptiles in the Museum of Natural History, the University of KansasWilliam Edward Duellman
Original author: William Edward Duellman
0 stars1 chapter6,623 words A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, MéxicoWilliam Edward Duellman
Original author: William Edward Duellman
0 stars3 chapters21,505 words Amphibians and Reptiles of the Rainforests of Southern El Petén, GuatemalaWilliam Edward Duellman
Original author: William Edward Duellman
0 stars2 chapters16,800 words Neotropical Hylid Frogs, Genus SmiliscaWilliam Edward Duellman
Original author: William Edward Duellman
0 stars6 chapters44,397 words A Review of the Middle American Tree Frogs of the Genus PtychohylaWilliam Edward Duellman
Original author: William Edward Duellman
0 stars3 chapters22,456 words Systematic Status of the Colubrid Snake, Leptodeira discolor GüntherWilliam Edward Duellman
Original author: William Edward Duellman
0 stars1 chapter2,073 words Middle American Frogs of the Hyla microcephala GroupWilliam Edward Duellman
Original author: William Edward Duellman
0 stars2 chapters14,421 words Descriptions of New Hylid Frogs From Mexico and Central AmericaWilliam Edward Duellman
Original author: William Edward Duellman
0 stars1 chapter8,622 words The Amphibians and Reptiles of Michoacán, MéxicoWilliam Edward Duellman
Original author: William Edward Duellman
0 stars7 chapters54,413 words A New Subspecies of Lizard, Cnemidophorus sacki, from Michoacán, MéxicoWilliam Edward Duellman
Original author: William Edward Duellman
0 stars1 chapter3,439 words A Review of the Frogs of the Hyla bistincta GroupWilliam Edward Duellman
Original author: William Edward Duellman
0 stars1 chapter8,121 words A Taxonomic Study of the Middle American Snake, Pituophis deppeiWilliam Edward Duellman
Original author: William Edward Duellman
0 stars1 chapter3,649 words Descriptions of Two Species of Frogs, Genus PtychohylaWilliam Edward Duellman
Original author: William Edward Duellman
0 stars1 chapter2,611 words The Genera of Phyllomedusine Frogs (Anura: Hylidae)William Edward Duellman
Original author: William Edward Duellman
0 stars1 chapter2,376 words 