30 
HISTORY OE BRITISH CRUSTACEA. 
The large Parthenojoe, from which the family name is de- 
rived, looks like a piece of rock, corroded by the action of 
the waves. 
Gen. 7. EUBYNOME, Leach. 
Eyes retractile ; hands more or less triangular, and armed 
with teeth. Carapace covered with asperities. Beak hori- 
zontal, and divided into two triangular horns. Outer an- 
tennse with the first joint ending at the inner angle of the 
orbit, the next joint springing from its upper edge, so that 
the movable stem, which is prolonged under the beak, 
seems to spring from the inner canthus of the eyes. Abdo- 
men in both sexes of seven joints. 
Eurynome aspera. Strawberry Crab. (Plate II. fig. 2.) 
— Of a rosy colour with bluish tints, rugose, with a large 
triangular tooth at the outer angle of the orbit, and three 
or four smaller ones along the side margin on the branchial 
region. Anterior legs tubercular, slightly compressed, nearly 
straight in the female : the other legs rugose, and furnished 
with a crest which is most distinct on the third joint. 
Pound in deep water, though not very commonly, on 
various parts of the coast. The Rev. G. Gordon found it 
at Lossie Mouth, in the Moray Pirth. Dr. James Howden 
