116 HISTORY OF BRITISH CRUSTACEA. 



spine on each side at the base. Hands unequal, swollen ; 

 second pair of legs with the wrist of five or six joints. 

 Length about an inch. 



Coasts of Devon and Cornwall ; Moray Firth ; County 

 Clare, Ireland. 



When alive it is of a dark sea-green hue, and its well- 

 developed pincers give it so much the aspect of a Lobster, 

 that, as Mr. Gosse observes, " it is generally believed, with- 

 out doubting, by the fishermen, to be the young state of 

 that much-honoured Crustacean. The habit of this pretty 

 little species is to congregate in some small hollow covered 

 by the tide, usually beneath the shelter of a protecting 

 stone ; so fond is it of companionship, that if you find one 

 you may pretty surely calculate on more. I have taken, 

 one by one, as many as fifteen out of a hollow hardly more 

 than a foot square."* 



Fam. FALMMONIDM, Leach. 

 Antennae inserted on two rows. Beak large, lamellar, 

 compressed, and toothed. Legs stout, without appendages 

 at their base. The two first pairs generally furnished with 



* The Aquarium, p. 3S. 



