3i8 ZOOTOMY. 



diverge, forming tlie crura penis, and are attached to the 

 ischia : dorsally it is soft and yielding, consisting only of 

 the thin vascular corpus spongiosum (<:..?, see § 279): its 

 free end is formed by a soft conical body, the glans penis 

 {g.p), which projects beyond the prepuce, and bears the slit- 

 like aperture {u.g.a) of the urethra, a canal traversing the 

 penis. 



266. The scrotal sacs, situated one on each side of 

 the penis, and having their cavities in communication, by a 

 widish aperture, with the peritoneal cavity, so that by pulling 

 upon the spermatic artery and vein (§ 256) the testis 

 which each contains can be retracted into the abdomen. 



267. The vasa deferentia (v. a), two whitish tubes 

 resembling the ureters in appearance and size : they pro- 

 ceed from the scrotal sacs into the peritoneal cavity, and 

 then each curves over the corresponding ureter to reach the 

 dorsal side of the bladder. 



XXVIII. Slit open one of the scrotal sacs along its 

 ventral wall, and make out : 



268. The testis, a pinkish-white, ovoidal body, about an 

 inch long in a full-grown rabbit 



269. The epididymis, an irregular, convoluted body, 

 forming the greatly coiled proximal end of the vas deferens : 

 it consists of the caput epididymis, applied to the 

 anterior end of the testis, and connected by a narrow 

 band running along the inner edge of the latter, with 

 the Cauda epididymis, which is continued posteriorly 

 beyond the testis, and, anteriorly, gives origin to the vas 

 deferens. The caput is usually much obscured by a mass 

 of fat, in which run the spermatic artery and vein. 



270. The gubernaculum, a short cord connecting the posterior end 

 of the Cauda epididymis with the interior of the scrotal sac. 



