1898.] ANATOMY OP PEDETES CAPEEB. 883 



the vagina for 1 inch, and on the dorsal side of its extremity are 

 two external ora. 



The Vagina is 3 inches in length, and is marked by prominent 

 longitudinal rugae. 



The Fallopian Tubes differ on the two sides, that on the right 

 (the pregnant side) is 1| inches, while the left only measures 

 I inch. 



The Ovaries are situated in a peritoneal pouch corresponding to 

 the arrangement figured by Eobinson ' in the Porcupine. The 

 right one is | inch long, fusiform and smooth ; the left one is 

 larger and more spherical. 



The Placenta, when the membranes were opened, was seen to 

 be a thick disc 2 inches long by 1| broad ; its uterine surface 

 was convex and smooth, its foetal surface concave and lobulated. 

 The umbiUcal cord was 5 inches long and was attached to the 

 foetal surface on one side of the middle. 



The Mammary Gland is very large and occupies the whole of 

 the pectoral region as well as a good deal of the lateral wall of 

 the thorax ; ventrally it reaches the mid line, dorsally it extends 

 rather beyond a line drawn horizontally backward from the dorsal 

 fold of the axilla. Anteriorly it reaches to within | inch from 

 the clavicle, while posteriorly its edge corresponds to the costal 

 margins. As has been already stated, there are two nipples on 

 each side. 



The Foetus was 7 inches long from the snout to the I'oot of the 

 tail, the tail itself being another 3 inches. The head was flexed 

 on the ventral surface of the thorax, and the fore limbs tucked 

 in under the chin. All the joints of the hind limb were strongly 

 flexed, the ankles being close together and the feet crossing so 

 that the right was the more superficial. The tail was coiled up 

 on the right of the right thigh and leg. The eyelids were closed, 

 but could be opened by a little traction. The auricles differed in 

 position on the two sides ; that on the right was folded back over 

 the neck, reaching as far as the mid-dorsal line, while the left was 

 turned down and partly covered the eye. The skin was devoid of 

 hair, but the vibrissae on the side of the snout were numerous and 

 about I inch long ; there were also five or six shorter bristles 

 above each eye, and three on each side growing from a small flat 

 papilla on the side of the face, dorsad and caudad of the eye. 

 The claws were indicated, but were not yet hardened. The foetus 

 was of the male sex, and the genital aperture was situated on the 

 summit of a well-marked eminence ; at first sight there appeared 

 to be two genital openings, but the more caudal was a blind pouch. 

 The anus was a transverse, slightly crescentic slit. 



When the skin was removed the eminence was seen to be 

 caused by the penis, which formed a U-shaped curve on the 

 abdomen, the convexity of the U being forward, and also by the 

 scrotal sacs, which already contained the testes. 



' " On the Position and Peritoneal Relations of the Mammalian Ovary," 

 Journ. of Anat. & Phya. 1887. 



