20 6 
GAMMA RID-®. 
A MPHIPODA . PHOXIDES. 
NAT ATOM A . 
LIUEBORGXA SHETLANDICA. N. S. 
. Specific character. First and second segments of the pleon unarmed ; 
fourth and fifth segments dorsally produced posteriorly into a small tooth. 
Secondary appendage of the superior antennae very short. Inferior antennae 
having the flagellum longer than the last joint of the peduncle. Dactyla of 
the gnathopoda unarmed. 
Length | inch. 
The head is not produced anteriorly. The dorsal 
surface of the animal is smooth, except a small tooth- 
like process, developed from the centre of the posterior 
margins of the ante- and penultimate segments of the 
tail. The eyes are small, round, and situated in their 
normal position on a lobe between the superior and in- 
ferior antennae. The superior antennae have the second 
joint of the peduncle longer than the first, the third 
joint very small, the flagellum reaching beyond the ex- 
tremity of the penultimate joint of the peduncle of the 
inferior antennae, and the secondary appendage extremely 
short. The inferior antennae have the last two joints of 
the peduncle very long and subequal, and the flagellum 
is rather longer than the last joint of the peduncle. The 
first pair of legs have the hands not dilated, but rather 
tapering to the distal extremity, and the wrist is nearly 
as long as the hand. The second pair of legs have the 
