672 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



Egg Harbor, New Jersey ; Nobska Beach. Vineyard 

 Sound; Nantucket Island; Woods Hole, Massachusetts: mouth of 

 Choptank Kiver. Dorchester County, Maryland. Found in sand, 

 liodv oblong-ovate, a little more than twice as long as wide, '2 mm.: 



4^ mm. ; surface very scaly, 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 



FlG. 710. SCYPHACEI.I.A ARENICOLA 



(AFTER BARKER), x 12. 



FlG. 711. SCYPHACELLA ARENICOLA. HEAD 

 WITH ANTENNA. K 27. 



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

 that the head seems to be produced forward in a triangular extremity 

 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 antennae have the first two articles short, the 



abed .1 



FlG. 712. SCYPHACELLA ARENICOLA. fl, UROPOD. X 51|. b, MAXILLIPED. X 51f. . C, FIRST MAXILLA 

 (OUTER LOBE). X 51|. rf, SECOND MAXILLA. X 51 1. , MANDIBLE. X 51 f. /, LAST TWO SEGMENTS 

 OF ABDOMEN. X 27J. 



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

 are nearly subequal, and each is a little longer than the second: the 

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

 is composed of four articles, the tirst article being twice as long as 

 the second; the articles are with difficulty to be distinguished. The 

 antenna; are thickly beset with spines. 



