The Amphipoda of Bermuda. 



55 



flagellum about as long as last joint of peduncle, made up of 4 or 

 5 segments. 



Mouth parts as in E. pocillimamis. 



In male, first gnathopods much smaller than second, with mod- 

 erately large rhomboidal epimeron ; second joint rather stout with 

 proximal end slender ; third and fourth joints short, fourth about 

 twice as long as broad with posterior margin convex apically where 

 it is provided with short setae ; wrist large, triangular, rather wider 

 than hand and with a number of long setae, some of which are 

 pectinate ; hand suboval in form, somewhat more than twice as 

 long as broad, palm rather oblique, passing into posterior margin 

 by even curve, prehensile angle with prehensile spine, posterior 



Fig. 20. Elasmopus magnispinatus sp. nov. 



margin and palm provided with rather long, slender setae ; finger 

 curved and of moderate proportions. 



Second gnathopods with suboval epimeron, rather higher than 

 long and having ventral margin rounded ; second joint strong, bear- 

 ing single stout spine at anterior apex ; third joint short ; fourth 

 joint subrectangular with distal margin bearing a small, triangular 

 process ; wrist triangular, about as broad as long and broader than 

 hand, with posterior margin provided with long setae ; hand and 

 finger similar to those of first gnathopod but larger. 



Epimera moderate ; pereiopods 3 to 5, very stout ; third abdominal 

 segment with posterior lateral angle produced slightly to form tri- 

 angular process. Dorsal region of body segments provided with 

 sparse hairs. 



Uropods, 3 pairs, biramous ; first and second with styliform rami, 



