EBALIA. 
63 
Ebalia Cranchii, Leach, sp. Crancfos Nut Crab.— 
Eront rather deeply notched ; latero-anterior margin of the 
carapace entire. Arm three times as long as it is broad. 
First found by Cranch in Plymouth Sound, and subse- 
quently found elsewhere on the coasts of the British Islands. 
The Bev. G. Gordon reports it to be very frequent on the 
fishing grounds of the Moray Eirth. “ This Crab frequently 
affords the best preserved specimens of Crustacea that are 
to be found in that curious agglomeration of the vestiges of 
organic life — the contents of the fish stomach. Erom their 
small size, they often escape the bruising power of the teeth, 
and the hardness of the carapace resists for a time the attri- 
tion and the dissolving power to which they are afterwards 
subjected/^ 
Eam. CORYSTIDJE, Leach. 
Outer antennae very large ; hind legs of same size and 
kind as the others, and employed for the same purposes ; 
sternal plate narrow and elongated. 
Eleven or tw T elve genera of this family are known to 
naturalists ; three only of these are British ; one, Thia, an 
interesting addition to our Fauna, discovered on the Irish 
* Rev. G. Gordon, in ‘ Zoologist/ p. 3683. 
