BY T. THOMSOX FLYNN. 879 



However, immediately behind the ovaries there is a downwardly 

 directed pouch-like invagination of the broad ligaments, 4 ram. 

 in depth. The mouth of each invagination is directed upward 

 and niesially. In the outer wall of this invagination run the 

 ovarian ligament, and also the round ligament for a portion of 

 its course. These two ligaments arise from the uterus in such 

 close combination as to form a single ligament, the two shortly 

 separating. 



The Fallopian T u b es (Fig.l,/<.) are rather peculiar in 

 not being greatly convoluted. They are thin, but well defined 

 tubes sharply marked oflf from the uteri behind, and extending 

 almost in a straight line, without any great convolution, forward 

 to become expanded and fimbriated. The fimbriae only slightly 

 invest the ovary. In their course between the ovaries and uteri, 

 the Fallopian tubes have to pass through the above-mentioned 

 pouches, dipping down in the anterior wall traversing the floor, 

 and rising again before each expands to form the uterus. 



Uteri. — These(Fig.l, r.?t<.) have a peculiar shape, which, 

 however, is quite comparable with the shape of the similar 

 organs in Peramdes. Each is many times longer than wide, and 

 is divided into two portions, a " body" and a " neck." The two 

 portions are quite sharply and distinctly marked off from one 

 another. While in Perameles " the two bodies of the uteri lie 

 with their mesial surfaces in apposition, except anteriorly where 

 they are .separated over a short part of their extent and connected 

 by the common median portion of the ligamenta lata "(3), in 

 iSarcojyhilus they are completely separated from one another by a 

 considerable space occupied by the common forward and median 

 expansions of the broad ligaments. Each body has, in external 

 view, the inner side flatter in shape than the outer; and in section 

 the uterus is subtriangular, with the flat inner side perpendicular, 

 and the dorsal and ventral surfaces meeting at a somewhat blunt 

 angle on the outer .side of the uterine body. The dimensions of 

 the uterine body are, length 14 mm., greatest breadth 6 mm. 



Microscopic Structure of the Uterus. — This is 



similar to that described by Hill, for Perameles(^). The serous 

 71 



