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A phylogenetic analysis of morphological characters revealed that the species content of the Bufo valliceps group is limited to eight species (two of them new) occurring between the southern United States and Costa Rica. Several Middle American species usually associated with this group are shown to be closely related, but outside of the Bufo valliceps group. The monotypic genus Crepidophryne is placed in the synonymy of Bufo. The taxon Bufo valliceps macrocristatus is recognized as a species distinct from Bufo valliceps. Seven species in the Bufo valliceps group appear to be allopatric with respect to one another and are restricted to humid primary forest habitat on the lower slopes of the major mountain ranges of southern Mexico, Guatemala, Honduras, and Costa Rica. The species Bufo valliceps is widespread in humid lowland habitats f...
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