. The biology of the amphibia. Amphibians. 306 THE BIOLOGY OF THE AMPHIBIA. C Fig. 112.—Effect of testicular hormone on the teeth of a salamander. A. The anterior teeth in the upper jaw of the female Desmognathus fuscus carolinen- sis 220 days after spaying and transplanting a testis. The new premaxillary teeth which have grown in, are elongate and directed forward in the form char- acteristic of the male. The skull of the typical female (B) and a male (C), for comparison. DENT, dentary teeth; MX, maxillary teeth; PAL., palatine teeth; PMX, premaxillary teeth; VOM, vomerine teeth. {After Noble

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. The biology of the amphibia. Amphibians. 306 THE BIOLOGY OF THE AMPHIBIA. C Fig. 112.—Effect of testicular hormone on the teeth of a salamander. A. The anterior teeth in the upper jaw of the female Desmognathus fuscus carolinen- sis 220 days after spaying and transplanting a testis. The new premaxillary teeth which have grown in, are elongate and directed forward in the form char- acteristic of the male. The skull of the typical female (B) and a male (C), for comparison. DENT, dentary teeth; MX, maxillary teeth; PAL., palatine teeth; PMX, premaxillary teeth; VOM, vomerine teeth. {After Noble and Pope.). 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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