F. A. E. Crew 



143 



Sub-group 2. The ovary tuas abnormal in appearance. 



3. Huxley. (1.) R. temporaria. Adult. Killed April. Secondary 

 sexual characters as those of a Avell-developed female. No male characters 

 were present. 



Right gonad. An ovary of usual size but more deeply pigmented 

 than usual. 



Left gonad. An ovo-testis consisting of an ovary of unexceptional 

 size, which bore upon its ventral surface a small nodule of testis material. 



Vasa efFerentia were not present in connection with the right gonad 

 but there were two in association with the testis-portion of the ovo- 

 testis. 



Seminal vesicles were present, being very small and spindle-shaped. 



Miillerian ducts were well-developed and ova were contained therein. 



Fig. 3. 



Fig. 4. 



On section, the right gonad was seen to be entirely ovarian in struc- 

 ture, the fibrous tissue of the ovarian wall was everywhere hyperplastic 

 and there was excess of pigment. 



The left gonad consisted of two portions. The smaller was composed 

 of spermatic and the larger of ovarian tissue similar in structure to the 

 ovary of the opposite side. The spermatic tissues were healthily normal 

 for the most part, but ova were found amid them, within and between 

 the seminal tubules. An ovum within a tubule lay among spermatozoa 

 which were deformed and degenerate, a consequence possibly of the 

 pressure exerted by the ovum. The seminal tubules in the neighbourhood 

 of an ovum which lay between the seminal tubules were contorted and 



