114 PEOF. M. WATSON ON THE ANATOMY OF THE 



upper surface of the bladder as far back as the points of entrance of the ureters, whence 

 it is reflected to the under surface of the corpus uteri. The lateral surfaces of the 

 bladder are also in part invested by peritoneum, whence this membrance passes to the 

 lateral and superior abdominal walls. The whole of the lower surface and base of the 

 bladder are therefore destitute of peritoneum. As in the male^ so in the female, the 

 apparent thickness of the vesical walls is due rather to the peritoneum and subperitoneal 

 connective tissue than to that of the muscular coat. 



Genital Organs. 

 Ovaries. — Each ovary is oval in form, and measures 1^ inch in length, and 1^ inch 

 in greatest breadth, and about f inch in thickness. Each is distinctly lobulated on the 

 surface, that of the right side more so than that of the left. The grooves or fissures 

 which separate the lobules are, however, quite superficial, and do not extend to any 

 great depth into the stroma of the ovary except in the case of that of the right side, in 

 which, close to the superior or attached margin, are two deep fissures, one of vehich 

 almost completely severs about \ inch in breadth of the ovarial substance from the 

 rest of the organ, the detached portion being further subdivided into two parts by a 

 second short but deep fissure. There is no trace of either of these deep fissures in the 

 ovary of the left side; and probably we are therefore justified in regarding their pre- 

 sence as an individual peculiarity. Each ovary is suspended over the mouth of a very 

 complete peritoneal pouch by means of two ligaments, one of which is attached to each 

 end of the organ. The internal ligament measures 1| inch in length, and passes from 

 the inner end of the ovary to the extremity of the uterine horn of the same side, whilst 

 the external ovarial ligament extends outward and forward from the outer end of the 

 ovary, and can be traced for a distance of 7 inches in the peritoneum, in the substance of 

 which membrane it at length disappears. This ligament, in all probability, corresponds to 

 the external ovarial ligament of Hyaena croctda ; but whether, as in that animal, it was 

 attached to the diaphragm could not be determined, as the viscera had been removed from 

 the cavity of the abdomen. Both ovarial ligaments are in the form of stout fibrous 

 cords. The pouch, at the mouth of which the ovary is placed, is formed of peritoneum 

 continuous with that forming the broad ligament of the uterus. Its opening, in the 

 natural position of the parts, is directed upwards and forwards (toward the spine of the 

 animal) ; so that the bag hangs vertically below the ovary. The bag itself is of large 

 size, measuring 3 inches from side to side, 3 inches from above downward, and Ij inch 

 from before backward, and closely resembles the corresponding structure of Ilycena 

 crocuta. Its posterior free margin is formed by the ovary and ovarial ligaments, its 

 anterior by the free edge of the wall of the sac. As pointed out by Mayer 2, Miall and 

 Greenwood ^, the ovarial pouch is separated into two compartments by means of a 



' Journal of Anat. and Phys. vol. vii. p. 64. ' Loe. cit. p. 39. ' Loc. cit. p. 63. 



