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Anoplura from Sea-Lions of the Pacific Ocean. 



By G. F. FERRIS, Stanford University, California. 

 The Anopluran parasites of the seals and their allies consti- 

 tute a small family, the Echinophthiriidae, containing less 

 than ten species, all of which are adapted by a thick coating 

 of spines, or spines and scales, to the aquatic life of their hosts. 

 Opportunities for the examination of these marine mammals 

 are not common and consequently new records are of much 

 interest. The present paper records one Anopluran species 

 previously described and another that appears to be new, both 

 taken from sea-lions of the Pacific coast. 



Echinophthirius fluctus n. sp. 

 Two mature males, a mature female and many immature 



