The AmpJiipoda of Bermuda. 



107 



margin. Second maxillae with inner plate shorter than outer, with 

 many slender setae around margin ; outer plate oblong with long 

 setae on apex. Maxillipeds with inner plate small, scarcely reaching 

 to base of first joint of palp, distal margin transverse and provided 

 with 2 or 3 spine teeth ; outer plate small, extending slightly beyond 

 first joint of palp ; with 8 rather long spine teeth on distal part of 

 inner margin and long setae which also arm the oblique distal 

 margin ; palp 4-jointed with first joint small and moderately stout, 

 having a few setae on inner margin ; second joint stouter and much 

 longer, about twice as long as wide, with inner margin provided 

 with many long setae ; third joint shorter and more slender than 

 second and with fringe of long setae on inner margin and apex ; 

 fourth joint unguiform, as long as third joint. 



Fig. 41. Caprella equilibra Say. 



First gnathopods with second joint moderately short ; third and 

 fourth joints short, fourth with a fascicle of long setae on distal por- 

 tion of posterior margin ; wrist about as broad as long, with setae 

 on rounded posterior margin ; hand oval, about twice as long as 

 wide, tapering toward distal end, anterior margin convex, posterior 

 margin very short, palm extending practically to base of hand, and 

 provided with setae of various lengths and a stout prehensile spine, 

 posterior part of palm finely serrate; finger long and strong with 

 inner concave margin toothed. 



Second gnathopods rather short and stout, with distal end much 

 broader than proximal and with lamellar process extending along 

 anterior margin ; third, fourth, and fifth joints short ; hand oval, long, 

 with long palm bearing 2 or 3 rounded processes about middle and 

 several short setae, prehensile angle {prominent, terminating in stout 

 spine : finger strong. " Of special importance as a character of the 



