F. A. E. Crew 



149 



Seminal .vesicles, pigmented and of moderate size were present. 



Mlillerian ducts were well-developed. 



On section, the right gonad consisted of normal spermatic tissue in 

 all parts, save those involving the pigment upon its outer border. The 

 band of pigment was composed of dense masses of polygonal pigment 

 granules within a fibrous tissue matrix and included many ova, all of 

 which showed signs of degenerative changes. Ovary- and testis-portions 

 were quite discrete but the line of demarcation was very irregular and 

 the pigment appeared to ramify along the lines of the intertubular con- 

 nective-tissues of the testis-portion. The anterior and middle lobes of 

 the left gonad had a structure similar to the above, whereas the posterior 

 lobe was entirely ovarian but pathological. 



There was ciliated epithelium upon the peritoneum. 



11. Marshall. (B.) R. temporaria. Adult. Killed during the 

 winter. Secondary sexual characters typically male. 



Right gonad. An ovo-testis having the appearance of an elongated 

 and irregularly shaped testis bearing an irregular band of black pig- 

 mented material along the anterior two-thirds of the anterior border, and 



Fig. 11. 



Fig. 12. 



at the anterior pole, a clump of spherical bodies strongly pigmented and 



closely resembling ova in appearance. At the extreme anterior end there 



was a pigmented lobe separated from the main body of the gonad by 



a deep constriction. 



10—2 



