UROTHOE BATRDII. 



AMPHIPODA. 



NATATOUIA. 



193 

 PHOXIDES. 



UROTHOE BA1RDII. 



Specific character. Inferior pair of antennae nearly half the length of 

 the body, having the flagellum three times as long as the peduncle. Inner 

 branch of the terminal caudal appendages naked. 



Length inch. 



Urothoe Bairdii. SPENCE BATE, Cat. Brit. Mus. p. 114, pi. xix. fig. 1. 



THE head is not anteriorly produced. The eyes are 

 round and small. The superior pair of antennae are 

 about as long again as the head ; the peduncle is about 

 the same length as the flagellum ; and the secondary ap- 

 pendage is about half as long as the flagellum. The 

 inferior antenna? have the peduncle not reaching beyond 

 the extremity of the peduncle of the superior, and 

 furnished with a few small spines and long hairs : the 

 flagellum is about three times as long as the peduncle ; 

 the articuli nearer to the peduncle are not longer than 

 they are broad, whilst those towards the extremity gra- 

 dually increase in length. The first two pairs of legs 

 are uniform, the anterior pair being a little the larger ; 



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