66 STUDIES IN COMPARATIVE ANATOMY. 



the uro-genital canal. No glandular bodies were discovered in 

 connection with the sinuses. The orifice of the urethra is a 

 simple rounded opening on the side remote from the rectum.^ 



The uro-genital outlet is not situated near the anus, but is 

 ordinarily" drawn forward, so as to reach the symphysis pubis. 

 Its sides are very loose and do not appear to be provided with 

 a distinct sphincter. The labia, or loose folds covered with 

 mucous membrane, form a hood or prepuce to the prominent 

 glans clitoridis. 



Clitoris. 



In our specimen the clitoris measured 14 inches, and 

 the glans projected nearly 2 inches. The two diverging crura 

 spring from the rami of the os pubis. Beyond this junction the 

 clitoris is nearly cylindrical. The vessels and large nerve lie on 

 either side, while in the middle line, enclosed in a distinct 

 membranous sheath, is the common tendon of the retradores 

 clitoridis. These consist of a pair of small tapering muscles, 

 which unite about 5 inches below their origin in a common 

 tendon. This passes along the dorsum of the clitoris, and is 

 inserted into the glans. The cavernous structure of the crura 

 clitoridis is well marked, and they can be easily inflated. The 

 glans is terminal and semi-globular. 



Accessory Eeproductive Organs. 



The mammse are pectoral, and two in number. They lie 

 between the fore-legs. The two glands are contiguous, and the 

 nipples are nearly intermediate between the middle line of the 

 thorax and the axilla. 



A temporal gland, situated above the zygoma, and half-way 

 between the eye and the ear, may be possibly an accessory 

 reproductive organ. It is flat, and in our example of squarish 

 outline. It lies upon the temporal muscle, from which, how- 

 ever, it is separated by the temporal venous plexus. The excre- 

 tory duct is short and of very small calibre, opening from the 



1 Hunter {Essays and Ohservations, vol. ii. p. 175), says that "at the termin- 

 ation of the proper vagina its cavity contracts at once, almost into a blind end ; 

 in the centre of which there are three small openings, neither of them larger than 

 a crow-quill ; the two lateral of these lead to two small sacs which pass a little 

 way along the sides of the common vagina. " 



