672 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



Local ltlei<. — Egg Harbor, New Jersey; Nol),ska Beach, Vineyard 

 iSound; Nantucket Island; Woods Hole, Massachusetts; mouth of 

 Choptank River, Doivhester CV)unty, Maryland. Found in sand, 

 l^ody oblong-ovate, a little more than twice as long as wide, 2 mm.: 



4i mm. ; surface very seal}, thickly covered 

 with small tubercles, each tipped with a 

 small spine. 



Head wider than long; frontal margin 

 but little produced; lateral lobes small. 

 Eyes large, round, composite, and placed 

 at the sides of the head, close to the lateral 



Fig. 710.— Scyphacella arenkola 

 (After Harger). ■ li'. 



Fig. 711.— Scyphacella arenicola. Head 

 WITH antenna. . 27i. 



margin. The epistome is continuous with the front of the head, so 

 that the head seems to ])e produced forward in a triangular extremit}^ 

 which is rounded anteriorly. The tirst pair of antenna^ are small, 

 inconspicuous, the terminal article fringed with hairs at the apex. 

 The second pair of antenna^ have the tirst two articles short, the 



n h c a J 



Fig. 712.— Scyphacella ARENICOLA. a, Uropod. :; 51|. 6, Maxilliped. ■ olf. f, First maxilla 

 (outer LOBE). X 51f. d. Second MAXILLA, x 51^. c, Mandible. ■: 51|. /, Last two segments 



OF ABDOMEN. :< 27|. 



second one a little longer than the first; the third and fourth articles 

 are nearly sube<|ual, and each is a little longer than the second; the 

 lifth is one and a half times longer than the fourth. The flagellum 

 is composed of four articles, the first ai'ticle being twice as long as 

 the second; the articles are with difficulty to l)e distinguished. The 

 antenna' are thickly beset with spines. 



