No. 26.] ARTHROSTRACA OF CONNECTICUT. I97 



This species occurs abundantly among eel-grass and algae 

 from the surface to depths of 6 fathoms. It has been reported 

 from England, the Mediterranean, France, the Azores, Madeira 

 also from Provincetown and Woods Hole, Massachusetts ; Vine- 

 yard Sound ; Long Island Sound ; Noank, Connecticut ; Great Egg 

 Harbor, New Jersey. 



It may be distinguished from the other Isopoda of the coast 

 by the following characters; the large and strong chelate first 

 pair of legs, the six-jointed abdomen, and the uropods with a 

 short, one- jointed outer ramus and six- jointed inner one. 



Leptochelia rapax Harger. 



1879. Leptochelia rapax, Harger, Proc. U. S. Nat. Mus., vol. 

 2, p. 163. 



1880. Leptochelia rapax, Harger, Rep. U. S. Com. Fish, for 

 1878, p. 424, pi. 3, figs. 89, 90. 



This species has been reported only from Annisquam, Massa- 

 chusetts, and the Bermudas. 



The female resembles quite closely that of L. savignyi 

 (Kroyer) but may be distinguished by the fact that the inner 

 ramus of the uropods is five- jointed instead of six-jointed. The 

 males are easily distinguished by the elongate and slender first 

 antennae and the 'much more slender and elongate carpus and pro- 

 podus of the first pair of legs; the carpus being about one-half 

 the length of the body and the propodus subequal to it. 



Length 4 mm. 



The species inhabits tubes. 



CYMOTHOIDEA or FLABELLIFERA. 

 First thoracic legs not cheliform; uropods lateral and form- 

 ing with terminal segment of abdomen a caudal fan ; pleopods for 

 the most part natatory. 



ANTHURID^. 

 Body long and slender, subcylindrical. Head comparatively 

 small. Segments of thorax well defined and without distinct 

 coxal plates. Abdomen comparatively short, with the anterior 

 segments sometimes coalesced, telson generally well defined, 

 linguiform. 



