The Ampliipoda of Bermuda. 19 



The species has also been reported from Rio Janeiro and pos- 

 sibly from the Mediterranean. 



Pariphinotus gen. nov. 



Body depressed and ridged dorsally. 



First and second antennae short ; iirst without accessory flagellum ; 

 flagella of both short. 



Mandibles without molar tubercle or palp, principal cutting edge 

 denticulated. Lower lip without inner plates. First maxillae with 

 obsolete palp and without inner plates. Second maxillae with inner 

 and outer plates coalesced except at apex. Maxillipeds with short, 

 truncated inner plates not reaching as far as second joint of palp, 

 apical margin with 3 sj^ine teeth ; outer plates broad and rounded, 

 unarmed, extending nearly to distal end of second joint of palp which 

 is moderate in size and made up of 4 joints, the terminal one of 

 which is unguiform. 



Gnathopods simple ; epimera low. 



Third pleopods with 2 rami and with peduncle expanded to form 

 arm-like process tipped with 3 coupling hooks. 



Uropods, 2 pairs, biramous. Telson semicircular, entire, thick. 



The genus is closely related to Iphinotus (Stebbing) but has only 

 2 pairs of uropods which are both moderately stout whereas in 

 Iphinotus the first is slender and the second stout. 



Pariphinotus tuckeri sp. nov. 



Head provided with broad, square rostrum with rounded corners 

 and with prominent lateral lobes which bear the large, prominent, 

 compound eyes. 



Antennae short; first being slightly longer than second, with 

 flagellum very short ; first antennae with first joint of peduncle much 

 Ijroader distally than proximally and about as broad as long ; second 

 joint about '^\^ as long as first and about ^2 as wide, with outer 

 margin produced slightly distally ; third joint about ^/s as long as 

 second, cylindrical in form ; flagellum short, about as long as second 

 joint of peduncle, made up of 2 joints of which the terminal one 

 is very short and the proximal one longer than last joint of peduncle, 

 provided with setae distally. Second antennae with flagellum like 

 that of first ; third joint of peduncle cylindrical, about as broad as 

 long ; fourth joint twice as long as broad ; fifth about same length 

 as fourth but narrower. 



Mandibles oblong with dentated cutting edges, 3 anterior teeth 

 large, posterior ones small ; molar tubercle and palp absent, spine 



