160 
GAMMA mum. 
AMP HIP OB A. 
NATATORIA. 
PHOXIBES. 
CEDICEROS. 
( Ediceros . Kroyer, Tidskr. iv. p. 155 (1842-3). 
(Edicerus. Dana, TT. S. Explor. Exped. p. 933. Spence Bate, Cat. Ampli. 
Brit. Mus. p. 103. 
Cephalon produced anteriorly. Eyes confluent. Superior 
antennae without a secondary appendage. Gnathopoda sub- 
chelate. Posterior pair of pereiopoda very long and slender. 
The head is produced and depressed anteriorly. The 
eyes are confluent, and situated before the antennae. 
The upper antennae are without a secondary appendage. 
The arms are subchelate : the first pair are a little longer 
than the second. “ The first two pairs of walking legs 
are strong, and the last pair is very long and slender, 
almost filiform.” (Kroyer.) 
The only specimen of this genus that we have seen 
is imperfect ; we, therefore, can only assume that the 
absent parts, like those present, correspond generically 
with the description given by Kroyer. In our specimen 
the eyes are visible, whereas Kroyer describes the ani- 
mal as having none, but marks the assertion with a 
doubt. 
This genus is in very close connection with West - 
woodilla , from which it appears to differ only in having 
the second pair of gnathopoda subchelate. 
It is to us a question of some doubt whether the 
species described by Dana belong to this genus. They 
certainly differ in the absence of the prolonged rostrum, 
and in the possession of two distinct lateral eyes. 
