COPEPODA FROM IFALUK ATOLL 



181 



Figure 66. — Parastenhelia spinosa (Fischer), loc. 590, ad. cf: a, whole animal, lateral view 

 from right side; b, same animal, dorsal view; loc. 592, ad. ?: c, furcal rami, ventral view. 

 (X 275.) 



Introductory Notes. — I have not attempted to split this very 

 variable species into varieties, chiefly because the available material 

 is not extensive enough. Lang has assembled arguments in favor of 

 a very broad concept of this species, including all the forms and 

 varieties that in the course of time have been described, but leaving 

 Parastenhelia ornatissima (Monard, 1935a), P. hornelli Thompson 

 and A. Scott, 1903, P. anglica Norman and T. Scott, 1905, and P. 



