72 
A COESfISa FAUNA. 
PiNNOTHEEES Veteeum — Pinna Pea Crab. — Bell. Ancient Pea 
Crab. — Couch, Bose, Leach Malac. t. 15; Milne Bdiva/rds, 
Mist, des Crust., t. ii, p 32, pl\9 ; Bell,Brit, StaTk-JSyed Crust., 
p 72. 
“ This is more rare than the last named, but there is a speci- 
men in the Museum of the Athenfeum, at Plymouth, as also of P. 
Varim of Leach, and either marked by that gentleman or Mr. 
Prideaux, but which is supposed by Dr. M, Edwards to be iden- 
tical with P. Pisum, a species that is subject to variation at 
different stages of growth.” 
According to Bell it has been found in Pinna ingens both on 
our Coast and in the Mediterranean : it has also been taken in 
Modiola and in the common oyster. 
Bell considers that P. Montagui of Leach is a variety only of 
this species. 
OONOPLACIBM . — (Angulae Ceabs.) 
Genus, Gonoplax. — Leach. 
“ Eoot-stalk of the eyes long, received into a cavity occupying 
the chief part of the anterior border of the carapace. Carapace 
angular and extended laterally.” 
Gonoplax angulata — Square Crab. — Milne Edwards Mist, des 
Crust., t. ii,p. 61 ; Pennant pi. 5, fig. 10 ; Bell's Brit. Stalk-eyed 
Crust., p 130. 
G. bispinora. — Brit. Malac., t. xiii. 
“Common, in moderately deep water, and often in the stomach 
of fishes.” 
It is rare in Ireland where it has been taken mostly on the 
south coast. It has not been recorded from Scotland. 
It is a Mediterranean species, and has been recorded from the 
southern and north-western coasts of France. 
Mr Couch next describes a very doubtful species under the 
name of Oelasimus Bellii, which Mr. Bell thinks may be the young 
of Eoux’s Gonoplax rhomhoides, which most carcinologists consider 
as a variety of Gonoplax angulata. I copy Mr. Couch’s descrip- 
tion in full, so that observers may be able to verify his obser- 
vations. 
