EBALIA. 63 



Ebalia Granchii, Leach, sp. Cranclts Nut Crab. — 

 Front 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 Rev. G. Gordon reports it to be very frequent on the 

 fishing grounds of the Moray Firth. " 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. From 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.""* 



Fam. CORTSTID^E, 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 twelve genera of this family are known to 

 naturalists ; three only of these are British ; one, Tkia, an 

 interesting addition to our Fauna, discovered on the Irish 

 * Rev. G. Gordon, iu ' Zoologist/ p. 3683. 



