474 

 AMPHIPODA 



N ATA TORI A. 



COROPHIID^E. 



PODOCERIDES. 



NCENIA RIMAPALMATA. 



Specific character. Second pair of gnathopoda having the propodos with 

 the palm deeply notched, and the margin very delicately crenulated. 

 Length 5 inch. 



Ncenia rimapalma. SPENOE BATE, Cat. Amph. Brit. Mus. p. 272, pi. xlvi. 

 fig. 3. 



THE eyes are round, and black; and the antennae, 

 which are nearly equal, are about two-thirds of the 

 length of the animal ; the inferior pair are slightly longer 

 than the superior; the flagellum in each pair is longer 

 than the peduncle. The first pair of legs are long and 

 slender ; the hand and the wrist being nearly of the 

 same length, and scarcely broader than the other joints ; 

 the palm is oblique and concave ; and the finger, which 

 is longer than the palm, is sharp and distinctly serrated 

 upon the inner margin. The second pair of legs have 

 the wrist short ; the hand long-quadrate, with the palm 

 oblique, having near its middle a deep notch, from 

 whence the specific name of the animal is derived ; the 

 margin of the palm is furnished with a row of small, 

 regular, bead-like protuberances. In all other respects 

 this species scarcely differs from the preceding. 



We first received it from the coast of Northumber- 

 land, where it was taken by Mr. Joshua Alder. It has 



