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A Review of the Middle American Tree Frogs of the Genus Ptychohyla, [en] 1963
Descriptions of Two Species of Frogs, Genus PtychohylaStudies of American Hylid Frogs, V, [en] 1961
A Review of the Frogs of the Hyla bistincta Group, [en] 1964
Systematic Status of the Colubrid Snake, Leptodeira discolor Gunther, [en] 1958
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