288 



In connection with the posterior end of the ovary are a few- 

 attenuated, fringed or hydatiform appendages, apparently the 

 remains of vestigial structures. 



Oviducts (Figs. 1, 2 and 3, od). — The oviducts, sinuous in their 

 anterior or distal segments, lie close to, and follow the contour of, 

 the outer borders of the ovaries. Each apparently commences- 

 at a point internal to the anterior border of the ovary, but 

 neither with hand-lens nor microscope could I detect the actual 

 opening ; its tissues appeared to be merged insensibly into those 

 of the broad ligament. About the level of the hinder border of 

 the ovary the posterior segment of the oviduct dilates into what 

 is evidently a uterine portion (ut), with a smooth internal 

 surface, but without any appreciable thickening of its parietes ; 

 microscopic sections, however, reveal the presence of glandular 

 tubules. These uterine portions of the oviducts converge almost 

 transversely, and meet at a point corresponding to about the 

 middle of the base of the bladder (Fig. 3). After meeting, 

 though the two cavities appear externally to unite into a single 

 tube, they really run for a little distance side by side, separated 

 by a thin septum, and then join the urethra close to the exit 

 from the bladder. The small size and softness of the parts, as 

 well as an unfortunately misdirected incision, prevented my being 

 certain of the exact manner of junction, whether, in fact, pre- 

 viously to joining the urethra, the two uteri do actually unite, 

 or whether they open separately into the uro-genital canal. I 

 did not feel justified, however, in mutilating another specimen 

 for the establishment of this fact alone. 



Ureters (Figs. 1, 2 and 3, ur). — These pierce the wall of the 

 bladder, and open on its internal surface, distinctly within its 

 cavity, but close to the urethral orifice. 



Urogenital Canal (Figs. 2 and 3, s.ug). — This is a long, straight, 

 and, relatively, narrow canal, lying, along its whole length, ventral 

 and close to the rectum (Fig. 2, r), into which it opens very 

 obliquely by a relatively wide and funnel-shaped orifice situated at 

 a distance of 6 mm. from the anterior margin of the external 

 cloacal aperture. 



Clitoris. — Partially concealed in a small depression in the an- 

 terior wall of the cloaca, 2 mm. posterior to the entrance of the 

 urogenital canal, and about 4 mm. from the anterior margin of 

 the cloacal orifice is a small Ungulate and single-pointed clitoris. 



Cloaca (Fig 2, cl). — The cloaca, 6 mm. in length along its an- 

 terior, and 10 mm. along its posterior wall, has its internal sur- 

 face irregularly rugose, and is apparently capable of considerable 

 distension. Compared with those of the rectum and intestines 

 its parietes are thick. On each side of the cloaca towards its 

 anterior surface is a conspicuous oval gland, from which a 



