KROYERA AREN ARIA. 
173 
A MPHIP OB A . PHOXIDES. 
NATATORIA. 
Specific character. Eyes small, round. Antennse subequal. First pair of 
gnathopoda as in Monoculodes. Second pair baying tbe propodos long and 
narrow ; tbe distal extremity of tbe carpus inferiorly produced beyond the 
apex of tbe dactylos. Posterior pair of pleopoda not so long as the preced- 
ing. Tel son entire, dorsally concave. 
Length, 5 2 0 inch. 
Kroyera arenaria. Spence Bate, Tyneside Field Nat. Club, vol. iv. pt. 1. 
p. 15, pi. ii. fig. 1. Cat. Ampb. Brit. Mus. p. 106, 
pi. xvii. fig. 4. 
The body is smooth, and the head considerably pro- 
duced and anteriorly depressed. The eyes are of mode- 
rate size, round, white, and placed behind the superior 
antennae. The superior pair of antennae reach to the 
fourth segment of the body, and have the first joint of 
the peduncle longer than the other two, which are short, 
and scarcely larger than the first articulus of the flagel- 
lum, which is about twice the length of the peduncle, 
and consists of about twelve or fourteen articuli. The 
inferior pair of antennae reach one -fourth further than 
