File:Image from page 137 of "Journal of anatomy" (1867) (14784202692).jpg

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Identifier: journalofanatomy51anatuoft Title: Journal of anatomy Year: 1867 (1860s) Authors: Anatomical Society of Great Britain and Ireland Anatomical Society of Great Britain and Ireland. Proceedings Subjects: Anatomy Publisher: Cambridge [Eng., etc.] University Press Contributing Library: Gerstein - University of Toronto Digitizing Sponsor: University of Toronto


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Text Appearing Before Image: base of the external surface of the prepuce. Owing to the curiousdisposition of the scrotal area, the penis, as it appears upon the external sur-face of the body, is abbreviated : the external surface of the prepuce measur-ing no more than 5 mm., whilst its internal surface is double that length. 124 Professor Frederic Wood Jones The glans penis is thin and tapering; in tlie spirit-preserved specimenit is of a, pale yellow colour, and is marked by line transverse wrinkles.There are no projections from its surface, nor are there any visibleglandular elevations or orifices. The opening of the urethra is sub-terminaland is situated upon the lower surface of the glans, presenting very muchthe appearance of the eyelet of a catheter. In my specimen no ossicle waspresent on the penis. The most striking feature of the external genitalia of the male is thecurious cephalic position of the scrotal pouches. Such a site of the scrotalarea is unique among Eutherian Mammals. The testes are obviously

Text Appearing After Image: Fig. T.—Tiipaia ferrugiiica. Ventral viewof external genitalia of adult male. permanently descended, and they are lodged beneath skin pouches, Imvingthe well-defined characters of the area scroti, which are situated cephalicto the root of the penis. The site of testicular lodgment is not so farforward as it is in the Metatheria; but it occupies a strange position uponthe cephalic aspect, and to the sides, of the body of the penis. Perhapsthe best description of this peculiarity could be given by likening thescrotal area of the male to the position of the Mons Veneris in the femaleIn the Metatheria the testes are herniated into scrotal sacs situated cephalicto tiie site of the Mons Veneris area; in Eutheria, as a rule, into some sitecaudad of this area ; but in Tupaia they have lodged within the area,and have depended slightly upon either side of the genital tubercle. The skin of the scrotum is pigmented, and is considerably darker incolour than the skin of the surrounding districts.


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