WING: ELLOBIOPSIDAE FROM NORTH PACIFIC 



Table 2. — Ranges, means, and 0.95 confidence intervals (CI) of means for lengths, diameters, and length-diameter ratios 

 of terminal gonomeres of Thalassomyces boschmai parasitizing mysids in collections from the western Mediterranean, 

 Washington, southeastern Alaska, and central Alaska. 



'Data from Nouvel and Hoenigman (1955). The authors gave the total length and diameter ranges shown but did not give the total number 

 of gonomeres used to figure these ranges. 

 ^Datafrom Hoffman and Yancey (1966). 



gonomeres of T. boschmai to be adherent as 

 Collard found for T. californiensis Collard. 



Effect of Host 



Adult and juvenile mysids are parasitized by 

 T. boschmai. I made no histological studies of 

 sterilization, but in the 130 parasitized mysids 

 examined, no brooding females occurred and 



reduced oostegites were common. Sterilization 

 may not always result, for Nouvel and Hoenigman 

 (1955) found a brooding female L. gracilis parasi- 

 tized by T. boschmai. Because the length of time 

 for development of the parasite or the eggs of the 

 mysids is not known, the specimen observed by 

 Nouvel and Hoenigman may have deposited her 

 eggs before being parasitized. The parasite must 

 also affect the host's molting and growth because 



173 



