82 



''ENDEAVOUR" SCIENTIFIC RESULTS. 



Fig. 13 ci b. Eunjstheus thomsoni, (Stebbing), male, 

 a. First gnathopod. t>. Second gnathopod of one side. 



The male differs from the female in the second gnathopod 

 which agrees with the description given by Stebbing. In 

 this specimen, as in the "Thetis" specimen examined by 

 Stebbing, the second gnathopods were unequal, one of them 

 resembling the female form. In a recent paper (1920, p. 8) 

 I suggested that Eurystheus thomsoni (Stebbing) was 

 somewhat similar to E. dentatus, Chevreux, which I had 

 recorded from New Zealand waters, and the females are 

 certainly somewhat difficult to distinguish ; but the male 

 of E. thomsoni, which I have now for the first time been 



