The Aniphipoda of Bermuda. 



27 



second joint slightly shorter and narrower, third joint shorter and 

 narrower than second ; flagellum made up of about 15 segments, 

 each of which is provided with setae on distal margin; accessory 

 flagellum made up of 1 joint which is not as long as first joint of 

 principal flagellum. Second antennae somewhat shorter than first; 

 peduncle short, last 2 joints longest and subequal, about twice as long 

 as wide ; flagellum scarcely as long as peduncle, composed of about 

 9 segments which are provided at distal ends with a few spines. 

 Mandibles with 3-jointed palp and with principal cutting edge 

 not denticulate ; secondary cutting edge divided into 4 slight, rounded 

 teeth ; 3 spine teeth on spine row ; molar tubercle well developed ; 

 third joint of palp longest, second joint rather broad. First maxillae 

 with 2-jointed palp. Maxillipeds with plates normally developed ; 



Fig. 9, Eusiroides crassi Stebbiiig. 



inner plate rectangular, not as long as first joint of palp, inner margin 

 with spine row with 4 or 5 spines ; molar tubercle prominent but 

 not very robust. Lower lip with lobes widel}- separated ; inner 

 plates very small ; mandibular processes short and rounded. First 

 maxillae with elongated palp 2-jointed, second joint nearly twice as 

 long as first with 4 or 5 spines on apex and 1 on outer margin at 

 middle ; outer plate broad with 10 branched teeth on oblique distal 

 end; inner plate small. Maxillipeds with 4-jointed palp of which 

 the first joint is triangular, second joint articulating b}' inner margin 

 and bearing 4 setae apically, second joint large, broader at distal 

 end and with row of setae about distal margin and with inner 

 margin denseh' covered with setae, third joint subrectangular, slightly 



