CAXCERID^E. 33 



men manning the shrouds on a fleet gala-day — have the an- 

 terior legs much elongated." 



Its eggs are of a bright red transparent coral-colour. 

 The young has the beak spiny on the outside, the sides of 

 the carapace have only two lamellae, and the abdomen is 

 tuberculated. Mr. Hailstone has described it in this state 

 as a distinct species, under the name of E. sjpinosa. 



Tribe 2. CYCLOMETOPITA,* M. Echc. 



Carapace very wide, and regularly arcuated in front ; 

 contracted behind. 



Some of the species are essentially organized for swim- 

 ming, and are found on the open sea ; others live near the 

 coast, but never quit the water j some live as long out 

 of the water as in it ; while others dig in the sand a sub- 

 terranean cave, into which they retreat. (M. Edw. 1. c, i. 



367.) 



Fam. CANCERIDJE, M. Edw. 



Carapace wider than long, narrowed somewhat behind, 

 the frontal sides forming a segment of a circle. Legs not 

 adapted for swimming; the hind ones similar to the others, 

 and ending in a pointed, claw-like toe. 



* KvkXos, a circle ; yuercoToy, front. 



