6 LÖNNBERG, ON THE FEMALE GENITAL ORGANS OF CRYPTOPROCTA. 



(in the present preserved state) on each side a lobe which 

 on its median side is divided from the central parts ^ by a 

 groove. These grooves become basally confluent with the me- 

 dian groove. The posterior surface of the clitoris shows 

 among the wrinkles in its distal portion a longitudinal fur- 

 row which may or may not be artificial. About 8 mm. from 

 the tip two folds, together forming a V-shaped figure, meet 

 in the median line and extend from that place to near the 

 lateral frenum of each side (conf. fig. 3). They form thus 

 together a shallow pocket, the depth of which in the distal 

 angle is about 2 mm. From this point a longitudinal groove 

 (not to be confounded with the small distal furrow) is seen 

 running in a proximal direction towards the base of the cli- 

 toris and if the vulva is cut open as in fig. 3 it is seen to 

 continue all the way along the anterior or proximal wall of 

 the sinus urogenitalis. A longitudinal fold borders the groove 

 on either side so that if these folds are laid together a tube 

 can be formed. About four cm. from the distal tip of the 

 clitoris and counted in an upward direction towards the anus 

 the hitherto nearly vertica.l sinus urogenitalis curves abruptly 

 in an almost right angle and pierces the wall entering into 

 the abdominal cavity where its situation under the rectum 

 in the pelvic region is almost horizontal. The above describ- 

 ed longitudinal groove may still be followed about two 

 centimetres from the curve along the now ventral wall of the 

 sinus urogenitalis and then the urethra is seen to open in the 

 same. The groove is thus to be regarded as a prolongation 

 of the urethra. The 1 ätter measures about 3\ 2 cm. in length 

 and passes gradually into a large oblong bladder. The 

 kidneys are in the present state of preservation strongly 

 flattened bodies measuring about 42 mm. in length by 

 23 mm. in breadth. Their thickness is, due to contraction, 

 only about 1 cm. They show but one raamilla when sec- 

 tioned. 



There are no folds or constriction as demarkation between 

 the proper vagina and the sinus urogenitalis, but the former 

 is continued with smooth walls about 2^2 cm. in a proximal 

 direction from the opening of the urethra. The thickness of 

 the wall of this portion is hardly 1 mm. But then the condi- 



' This is mostly hidden by the prepuce on the tigure, only on one side 

 the basal lobe and its groove are partly visible. 



