430 



AMPHIPODA, 



NATATOR1A. 



COROPHIID.E. 



PODOCERIDES. 



SUNAMPHITHOE HAMULUS. 



Specific character. Antenna? subequal : superior pair one-third as long 

 as the animal, the flagelluin not heing longer than the peduncle : inferior 

 pair having the flagellum scarcely longer than the last joint of the peduncle. 

 Gnathopoda subequal. Telson in the form of a very perfect hook. 



Length y inch. 



Swmrrvphithoe Hamulus. Spence Bate, Ann. Nat. Hist. 2 ser. xix. p. 148. 



Cat. Amph. Brit. Mus. p. 250, pi. xliii. fig. 5. 

 White, Pop. Hist. Brit. Crust, p. 202. 



The eyes are small, round, and black. The antennae 

 are nearly of the same length and about one-third that 

 of the animal ; in the upper pair the flagellum is about 

 the same length as the peduncle ; in the lower pair the 

 flagellum is much shorter, not being longer than the last 

 joint of the peduncle. The hands of the first two pairs 

 of legs are nearly of the same size, the second being 

 slightly the larger, and the fingers of both are serrated. 

 The first two pairs of walking legs are short and strong ; 

 the last three are strong and longer ; the distal extremity 

 of the hand being furnished with a palm armed with two 

 short, obtuse spines and one long, blunt, spirally-curved 

 spine, against which the finger, which is obsoletely 



