60 University of California Publications in Zoology. [Vol.8 



In the entire twenty-seven specimens there is none that 

 appears to me to be fully mature. No. 22 (pi. 6, fig. 43) evi- 

 dently has most nearly attained this condition, and I suspect 

 that an examination of a larger series of individuals than the 

 San Diego catches afford would show that the ventral ganglion is 

 the object about which the maximum length of ovary fluctuates. 

 Apparently the seminal vesicles may mature before the ovaries. 

 Concerning this Ritter-Zahony (1908, p. 12) says: "Zur Zeit der 

 mannliehen Reife sind die Ovarien noch verhaltnissmassig kurz; 

 ihre vollige Reife fallt." This seems to indicate that the ovaries 

 attain their complete maturity very rapidly during the last 

 period of life. On his specimens of S. hjra Ritter-Zahony 

 (1908) makes the following measurements: 



Length of specimen Length of ovary 



in mm. in mm. 



16 0.8 



18 1.0-1.5 



19 1.6 



21 2.8 



22 0.75 



25 0.35-1.8 



26 - 0.25-0.75 



27 0.5 



28 1.0 



29 0.5-2.2 



30 2.2 



