. The Cambridge natural history. Zoology. BUFONIDAE 167 matidae,is indicated by the Mexican Rhinophrys and the Australian Myobatrachus. However, since there are no true Engystomatidae in Australia, although several genera occur in Papuasia, these cases may be instances of convergence without necessarily im- plying relationship. An unmistakable line of connexion leads, accordino- to Boulenger, to the Pelobatidae, the link being the Himalayan Cophopliryne, with very strongly dilated sacral diapophyses, with a single condylar articulation of the coccyx with the sacral vertebra (as in some Indo-Ma
. The Cambridge natural history. Zoology. BUFONIDAE 167 matidae,is indicated by the Mexican Rhinophrys and the Australian Myobatrachus. However, since there are no true Engystomatidae in Australia, although several genera occur in Papuasia, these cases may be instances of convergence without necessarily im- plying relationship. An unmistakable line of connexion leads, accordino- to Boulenger, to the Pelobatidae, the link being the Himalayan Cophopliryne, with very strongly dilated sacral diapophyses, with a single condylar articulation of the coccyx with the sacral vertebra (as in some Indo-Malayan Pelo-. =^ BUFO. V///- FORMS WITH FINGER DISCS. ^S^^ FOf?MS BESIDES BUFO. Fig. 34.—Map showing distribution of Bufonidae. The vertical lines indicate the occurrence of Bufonidae, but not of Bvfo. batidae), while this articulation is bicondylar in all the other Bufonidae. The whole family is divided into eight genera with more than a hundred species, of which only about fifteen do not belong to the genus Bnfo. The distribution of the family is well-nigh cosmo- politan, with the remarkable exception of Madagascar, Papuasia, a ad the small islands of the Pacific; Bufo has been wrongly said to inhabit the Sandwich Islands. The greatest number of species, chiefly Bvfo, occur in the Neotropical region, the greatest number of genera in Central America, where Bvfo is rare, and in Australia, where it is absent. A. Pupils contracted to a horizontal slit. Typically arciferous. a. Australian. Tympanum invisible. Fingers and toes not dilated. 1. "Witli vomerine teeth. Both the omo- and meta-sternum are rudimentary. East Australia : . Notaden bennetti. '1. Without vomerine teeth. Omosternum absent. cartilaginous: ..... Pseadophryuf, ix 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 Harmer,
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
