. The biology of the amphibia. Amphibians. 530 THE BIOLOGY OF THE AMPHIBIA the palatine, not the parasphenoid as in the plethodontids. The teeth on these posterior pre vomers have been called " ; As a matter of fact, true teeth are never found on the palatine bones of any Salientia. The genera of Rhombophryninae are best distinguished by comparing their skull and pectoral girdle elements. Mantipus, Platyhyla, Platypelis, and Plethodontohyla retain the maxillary teeth, and their posterior prevomer is a broad transverse plate overlying the palatines. In Plethodontohyla the cla
. The biology of the amphibia. Amphibians. 530 THE BIOLOGY OF THE AMPHIBIA the palatine, not the parasphenoid as in the plethodontids. The teeth on these posterior pre vomers have been called " ; As a matter of fact, true teeth are never found on the palatine bones of any Salientia. The genera of Rhombophryninae are best distinguished by comparing their skull and pectoral girdle elements. Mantipus, Platyhyla, Platypelis, and Plethodontohyla retain the maxillary teeth, and their posterior prevomer is a broad transverse plate overlying the palatines. In Plethodontohyla the clavicles are. Fig. 173.—Brevicipitid toads. The Brevicipitidae exhibit a wide range of adaptive radiation. Some species, .such as Platyhyla verrucosa (A) of Madagas- car are arboreal and have large adhesive discs. Many, such as the American Gastrophryne carolincnsis (B), are fossorial, and have narrow, pointed heads and rotund bodies. absent; in the others, present. Mantipus retains the complete clavicle of Dyscophus, while in Platyhyla and Platypelis it is reduced and does not reach the scapula. Platyhyla retains a complete row of vomerine teeth, while in Platypelis the vomerine teeth are restricted to the mesial end of the posterior prevomer. The most distinctive genus in this series is Platyhyla, with its enormous discs and hyla-like appearance (Fig. 173, A). The remaining genera of Rhombophryninae are more easily distinguished than the preceding. Rhombophryne is a little toadlike creature with a peculiar warty face (Fig. 34, B). It. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Noble, Gladwyn Kingsley, 1894-1940. New York : McGraw-Hill
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