No. 26.] 



ARTHROSTRACA OF CONNECTICUT. 



215 



Coxal plates sometimes distinct, sometimes fused with their 

 segments. Legs rather strongly built, increasing in length 

 posteriorly; three anterior pairs sometimes strongly subcheliform. 



Abdomen with some or all its segments consolidated to form 

 a large terminal plate. Uropods very large, lamelliform, valve- 

 like. 



Chiridotea cceca (Say). 



Fig. 66. Chiridotea cceca. 



1818. Idotca caxa, Say, Jour. Acad. Nat. Sci. Phila., vol. i, 

 p. 424. 



1841. Idotea caxa, Gould, Invert. Massachusetts, p. 337. 



1880. Chiridotea caxa, Harger, Rept. U. S. Com. Fish, for 

 1878, p. 338, pi. 4, figs. 16-19. 



1905. Chiridotea caxa, Richardson, Bull. U. S. Nat. Mus., 

 No. 54, p. 353. 



Body ovate, broad and short, tapering to acutely pointed 

 extremity ; abdomen nearly one-half as long as whole body. Head 

 only slightly excavated in front for the antennae, with a triangular 

 process not extending beyond the line of the front margin ; deeply 

 notched also at antero-lateral angles. Eyes small, inconspicuous, 

 round, situated at base of posterior lateral lobe of head. 



First antennse longer than peduncle of second pair; first joint 

 very short and not dilated; second joint strongly clavate and 



