. The tailless batrachians of Europe. Frogs; Amphibians. SKELETON. 37 genera. The body is broad with well-developed, sometimes ossified postero-lateral, but no anterior, processes in the Discoglossidse (Fig. 12, d, p. 34); with anterior processes and short postero-lateral ones in the Pelohatidce and Bana (Fig. 14); elongate. Mandible and hyoid of Bana esculenta, lower view. ang. Angular. I pi. Lateral process of hyoid. c. Cornu of hyoid. \ PpT- Postero-lateral process of hyoid. cZ. Dentary. j pth. Thyroid process of hyoid. pa. Anterior process of hyoid. I sy. Symphysial (mento-Meckelian). and
. The tailless batrachians of Europe. Frogs; Amphibians. SKELETON. 37 genera. The body is broad with well-developed, sometimes ossified postero-lateral, but no anterior, processes in the Discoglossidse (Fig. 12, d, p. 34); with anterior processes and short postero-lateral ones in the Pelohatidce and Bana (Fig. 14); elongate. Mandible and hyoid of Bana esculenta, lower view. ang. Angular. I pi. Lateral process of hyoid. c. Cornu of hyoid. \ PpT- Postero-lateral process of hyoid. cZ. Dentary. j pth. Thyroid process of hyoid. pa. Anterior process of hyoid. I sy. Symphysial (mento-Meckelian). and without anterior processes in Bufo. In Pelodytes and Pelobates the anterior processes are much expanded, converge towards each other, and join the lateral pro- cesses, enclosing a fenestra on each side of the hyoid plate. The cornua are broad in the Discoglossidse, moderately broad in Bufo, slender in Rana; they are detached from the body of the hyoid in the Pelobatidas. The thyroid processes are always ossified, and form a pair of diverging styles, in front of which, on the ventral side, a slender, single or paired, V- or H-shaped ossification may be present, as in Discoglossus, Alytes, and Pelodytes (Fig. 12, d, p. 34). The vertebral column (Fig. 15) is formed normally of ten segments, viz. eight dorsal vertebrae, one sacral, and the urostyle or coccyx,—or of nine if the urostyle be fused with the ninth vertebra, as is frequent in Pelobates. The vertebra are much depressed, especially the. 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 Boulenger, George Albert, 1858-1937. London, Printed for the Ray society
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Keywords: ., bookcentury1800, bookdecade1890, booksubje, booksubjectamphibians
