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  1. Late Pleistocene Herpetofaunas from Puerto Rico /
    By: Pregill, Gregory K.
    Publication info: Lawrence :The University of Kansas,1981.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
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  2. Systematics of the West Indian lizard genus Leiocephalus (Squamata: Iguania: Tropiduridae) / Gregory K. Pregill.
    By: Pregill, Gregory K.
    Publication info: Lawrence, Kansas :Museum of Natural History, The University of Kansas,1992.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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