. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. UROGENITAL SYSTEM. 345 folds which develop into the labia of the genital opening in the female while in the male they furnish a part of the scrotal envelope. The most primitive type of the cloacal penis is found in the chel- onians (fig. 343) and crocodiles, and slightly more developed in the. FIG. 344.—-Ventral cloacal wall and penis of Rhea (schematized), after Boas, b, blind sac;/, corpus fibrosum; g, seminal groove; g', its continuation along blind sac;o, opening of blind sac. Mucous membrane dotted, semina
. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. UROGENITAL SYSTEM. 345 folds which develop into the labia of the genital opening in the female while in the male they furnish a part of the scrotal envelope. The most primitive type of the cloacal penis is found in the chel- onians (fig. 343) and crocodiles, and slightly more developed in the. FIG. 344.—-Ventral cloacal wall and penis of Rhea (schematized), after Boas, b, blind sac;/, corpus fibrosum; g, seminal groove; g', its continuation along blind sac;o, opening of blind sac. Mucous membrane dotted, seminal groove black. ostriches and some of the aquatic birds. In these the ventral or anterior wall of the cloaca and its lip become specialized by the develop- ment in it of a longitudinal band of fibrous tissue, covered on the cloacal side by cavernous tissue (containing large spaces, which on. 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 Kingsley, J. S. (John Sterling), 1854-1929. Philadelphia, P. Blakiston's son & co.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1912