164 
GAMMARIDiE. 
straight finger. The last pair of caudal appendages are 
double-branched, and the terminal plate is squamiform. 
The genus was first described by Mr. Stimpson, in his 
“ Synopsis of the Marine Invertebrata of Grand Ma- 
nan,” it which he says that it differs from (Ediceros in the 
form of the hands. We have not, until recently, had an 
opportunity of seeing an undoubted specimen of the 
latter genus. This, however, corroborates our previously- 
expressed opinion, which was based upon the circum- 
stance that Kroyer, in his description of the genus, did 
not in any way refer to the prolonged carpus of the first 
two pairs of legs : we, therefore, agree with Stimpson, 
and retain the genus Monoculodes , to which (Ediceros 
appears to he closely allied. Monoculodes assimilates also 
to W estwoodilla , in which, however, the second pair of 
legs are not in the least degree subchelate. 
This genus was first described in this country by Mr. 
Spence Bate, in “ A Synopsis of the British Amphi- 
poda,” under the name of Kroyera , with Westwoodea 
carinata (Brit. Assoc. Rep. 1855, p. 58) as its type. 
Being, however, identical with Monoculodes of Stimpson, 
the name of Kroyera has been sunk for the present 
genus. In order, however, that the name of the dis- 
tinguished Danish carcinologist should remain associated 
with the present class, it has been transferred to a sub- 
sequent genus. 
