UROTHOE BAIRDII. 
193 
A MPHIPODA . P H OXIDES. 
NAT ATOM A. 
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 5 4 g 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 antennae 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 ; 
o 
