DESCRIPTION OF A NEW SPECIES OF iEGA FKOM THE 

 ATLANTIC COAST OF THE UNITED STATES. 



By Harriet Richardson, 



Collaborator, Division of Marine Invertebrates, U. S. National Museum. 



A new species of Mga was collected by the U. S. Bureau of Fish- 

 eries steamer Albatross in 1885 off the Atlantic coast of the United 

 States. Only one specimen was obtained, the description of which 

 follows : 



JEGA ORNATA, new species. 



Body oblong ovate, twice as long as wide, 8 mm.: 4 mm. 

 Head large, subtriangular, with apex obtuse, about twice aa 

 wide as long, a little more than 1 mm. 

 long and a little more than 2 mm. wide. 

 Eyes large, composite, composed of six 

 rows of ocelli on the dorsal side and sep- 

 arated at their anterior extremities by a 

 distance of 0.5 mm. The eyes are also con- 

 spicuous on the ventral 

 side of the head, show- 

 ing several rows of 

 ocelli. The first pair of 

 antenna have the first 

 two articles of the pe- 

 duncle short and sub- 

 equal; the third article 

 is three times as long as 

 the second; the flagel- 

 lum is composed of 11 

 articles and extends to 

 the post-lateral angle of 



the first thoracic segment and a little beyond the 

 peduncle of the second antennas. The second 

 antennas have the first two articles of the peduncle 

 short and subequal; the third is as long as the 

 first two taken together; the fourth is twice as long as the third; 

 the fifth is one and one-half times as long as the fourth; the fla- 

 gellum is composed of 16 articles and extends to the post-lateral 

 angle of the third thoracic segment. 



Fig. 1.— ^Ega ORNATA 



Fig. 2.— JEga ornata 

 Maxilliped. X 65|. 



Proceedings U.S. National Museum, Vol. 40— No. 1841. 



623 



