File:On the anatomy of vertebrates (electronic resource) (1866) (14564547157).jpg

Identifier: b20416039_003 (find matches)
Title: On the anatomy of vertebrates (electronic resource)
Year: 1866 (1860s)
Authors: Owen, Richard, 1804-1892
Subjects: Anatomy, Comparative Vertebrates Fishes Reptiles Mammals Birds
Publisher: London : Longmans, Green
Contributing Library: Wellcome Library
Digitizing Sponsor: Wellcome Library

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n glands, d, d, are elongate and pyriform: their ducts open far forward, nearer theglans penis than the vesical orifice. There is no ossicle: thepenis is easily pulled out of the prepuce, and the prepuce thenseems to be continued all along the penis to the end, and much ofthe same colour. This is not the same as in a dog,1 in which thecovering of the glans is more distinct in texture and attachment. In the Cat the glans penis is beset with callous retrovertedpapillae: they are less numerous and conspicuous in the Tigerand Lion. In all Felines there is a small prostate, limited tothe back part of the neck of the bladder: the muscular part ofthe urethra is long. Cowpers glands are large, and derive theirmuscular covering from a modification of the 6 acceleratores, ofwhich an external may be distinguished from an internal portion.The erectores arise each by a broad tendon from the pubis ;anterior to this the £ compressores venae dorsalis take their origin, 1 ccxxxrv. vol. ii. p. 58. 528
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672 ANATOMY OF VERTEBRATES. and converge to unite, at the symphysis pubis, in a strongcommon tendon, which passes over the 4 vena dorsalis penis.Two slender fasciculi derived from the 4 retractor ani pass alongthe bulb and under side of the urethra to the line of reflection ofthe prepuce, where they are lost in the skin of the glans : theybend back that part, in the unerect state, and cause the felines tobe 4 retromingent. § 380. In Quadrumana.—The testes of the Aye-aye ( Chiromys)occupy a sessile scrotum: the tunica vaginalis communicates withthe peritoneal cavity, but by too contracted a canal to permit anyreturn there of the testes, offering a notable difference fromRodents. There are no vesicular glands ; but a moderate sizedcompact prostate, and a pair of flattened oval Cowperian glands,the ducts of which penetrate the urethral bulb. Besides the4 erectores and acceleratores, there is a pair of strong 4 levatorespenis arising from a fascia below the symphysis pubis, crossingthe

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