264 REPORT OF NEW JERSEY STATE MUSEUM. 



segment of abdomen with median posterior emargination, fur- 

 nished with or without teeth. Legs all ambulatory. Both 

 branches of uropoda present, outer branch not rudimentary, only 

 inner branch salient. Branches of uropoda unlike in male, outer 

 branch not capable of folding under inner branch. 



Species rather numerous, and the males and females said to 

 be quite unlike. The former are remarkable for the long median 

 spine or process of the first abdominal segment. 



Cilicaea caudata (Say). 



Plate 80. 



NcBsa caudata Say, Journ. Acad. Nat. Sci. Phila., I, 1818, p. 482. Egg Har- 

 bor, New Jersey. 



— De Kay, N. Y. Fauna, Crust., VI, 1844, p. 45 (on Say). 



White, Cat. Crust. Brit. Mus., XXV, 1847, p. 105. North America 



(Say's material). 

 Ciliccea caudata H. Richardson, Proc. U. S. Nat. Mus., XXI, 1899, p. 841 



(references). 

 • ■ H. Richardson, Amer. Nat., XXXIV, 1900, p. 224. Cape Cod to North 



Carolina region. 

 — H. Richardson, Proc. U. S. Nat. Mus., XXIII, 1901, p. 536. Egg 



Harbor, New Jersey. (Florida and Mexico.) 

 — H. Richardson, Bull. U. S. Nat. Mus., No. 54, 1905, p. 314 figs. 343- 



348. Egg Harbor, New Jersey. (Florida, Bermuda, Bahama, Porto Rico, 



Mexico.) 



Description of female. — Body ovate, length twice its width. 

 Head width nearly twice its length, with frontal edge arising be- 

 tween eyes and produced in small median point. Eyes com- 

 posite, small, round, placed in hind lateral angles of head. 

 First antennse with long stout basal segment, second segment 

 less than half length of first and equally wide, third segment 

 twice length of second and half as wide. Flagellum formed of 

 ten segments. First antennae reach almost to hind edge of first 

 thoracic segment. Second antennse with very short basal seg- 

 ment, second segment twice length of first, third segment one 

 and one-half times longer than second, fourth segment little 

 longer than third and fifth segment little longer than fourth. 

 Flagellum formed of twelve segments. Second antennae reach 

 hind edge of second thoracic segment. Maxillipeds with palp 



