736 



MR. E. H. BURNE ON THE 



[June 15^ 



found in Otaria and Phoca signs of a similar though less perfect 

 subdivision of the cervix uteri. ISTevertheless it seemed to him 

 highly desirable that this point should be confirmed whenever 

 the opportvinity should aiise. 



The specimen now examined fully confirms Prof. Cleland's 

 observation, so closely that any description of the uteri beyond 

 the above abstract fi^om his paper is unnecessary. 



Text-fig. 233. 



The ovaiy and ovaviau sac of a Walrus, seen from the dorsal aspect, with the 

 sac cut open. 



IP. Bundle of fimbrise running forward from the lower edge of the Fallopian 

 tube, ^.T. O. OvarJ^ S. Wall of ovarian sac. &'.0. Opening of ovarian sac 

 into body-cavity. TI. Horn of the uterus. 



Complete duplicity of the uterus combined with complete 

 superficial fusion of the lower ends is recorded in some of the 

 larger Bats *, but 1 have not found a record of it elsewhere and 

 there is no example showing such a condition in the large series 

 preserved in the Museum t, although several Rodents with com- 

 pletely separate uteri suggest it. The next stage, in which the 

 lower part of the uteri are completely fused to form a " body " 

 separated more or less in its upper parts by a septum, but opening 

 by a single os, is extremely common and naturally leads to the 

 single chamber of the Primates. 



This specimen also agrees with Pi'of. Cleland's in the large 

 size of the ui-ogenital sinus (6 cm. in length) and in its separation 

 from the vagina by a strong hymeneal fold projecting from its 



* Robin, Ann. Sci. Nat. ser. 6, t. xii. p. 137. 

 t R. Coll. Surgeons. 



