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. The biology of the amphibia. Amphibians. RELATIONSHIPS AND CLASSIFICATION 493 phrys the pupil is vertical; the maxillary teeth are well developed, but the vomerine may be more or less reduced or absent; the omosternum is cartilaginous or calcified; while the sternum has a long, bony style. Nesobia of the Natuna Islands is a Megalo- phrys with a horizontal pupil. Scutiger of the Himalayas is a rough-skinned, high-mountain Megalophrys with short maxillary teeth. Aelurophryne of the same region is a Scutiger which has carried the specialization farther and lost the maxillary teeth entirely. Oph

. The biology of the amphibia. Amphibians. RELATIONSHIPS AND CLASSIFICATION 493 phrys the pupil is vertical; the maxillary teeth are well developed, but the vomerine may be more or less reduced or absent; the omosternum is cartilaginous or calcified; while the sternum has a long, bony style. Nesobia of the Natuna Islands is a Megalo- phrys with a horizontal pupil. Scutiger of the Himalayas is a rough-skinned, high-mountain Megalophrys with short maxillary teeth. Aelurophryne of the same region is a Scutiger which has carried the specialization farther and lost the maxillary teeth entirely. Oph Stock Photo
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Library Book Collection / Alamy Stock Photo

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RHK6RY

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7.2 MB (313.8 KB Compressed download)

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2187 x 1143 px | 37 x 19.4 cm | 14.6 x 7.6 inches | 150dpi

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. The biology of the amphibia. Amphibians. RELATIONSHIPS AND CLASSIFICATION 493 phrys the pupil is vertical; the maxillary teeth are well developed, but the vomerine may be more or less reduced or absent; the omosternum is cartilaginous or calcified; while the sternum has a long, bony style. Nesobia of the Natuna Islands is a Megalo- phrys with a horizontal pupil. Scutiger of the Himalayas is a rough-skinned, high-mountain Megalophrys with short maxillary teeth. Aelurophryne of the same region is a Scutiger which has carried the specialization farther and lost the maxillary teeth entirely. Ophryophryne, from the mountains of northern India, is a small-headed Megalophrys without teeth and with a horizontal pupil. The Bornean Leptobrachella is a diminutive Megalophrys with a cartilaginous sternum. Leptobrachella, Fig. 157.—Pelobatid toads: A. Sooglossus sechellensis. B. Megophrys nasuta. Ophryophryne, and Nesobia, are each known only from a single species. Scutiger is represented by two closely related species and the same may be said for Aelurophryne. Thus it is highly probable that all these genera are merely local specializations of the Megalophrys stock in comparatively recent times and not groups which have given rise to any of the higher Salientia, as some herpetologists have maintained. Subfamily 2. Pelobatinae.—Pelobatids with the presacral vertebrae uniformly procoelus, sacrum fused to the coccyx, except in Pelodytes, which has a single condyle. The American Scaphiopus and the European Pelobates are popularly known as the "Spade-foot Toads," because of the broad, sharp-edged tuber- cle which they carry on the inner side of the foot. The bony core of this tubercle is formed by the prehallux greatly enlarged as an. 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 work.. Noble, Gladwyn

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