ART. 1 



NEW BOPYEID ISOPODS — PEAESE 



tion. The females measure 2.5 and 3.1 mm. long and 1.2 and l.T mm. 

 wide. They are more asymmetrical than K.icliardson"'s figures show, 

 and their bodies are bent somewhat more to one side; the fourth 

 and fifth pairs of legs are not widely separated. As Richardson had 

 no male specimens, the following description of the male is given : 

 Body 0.9 mm. long, 0.2 mm. wide, straight except for the abdomen, 

 which is bent slightly toward the left side; consists of a head and 13 

 free segments. Head rounded along lateral and anterior margins, 

 wider than long, inclosed for a third of its length in the first thoracic 

 segment. Eyes near posterolateral margins of the head, small; 



Figures 22-26. — Stegias clibanaru Richardson, male : 22, Ventral view ; 23, first 

 antenna ; 24, second antenna ; 25, head, dorsal view ; 26. tip of abdomen, ventral 

 view 



there are circular spots continuous posteriorly with pigmented sin- 

 uous bands, which reach to the posterior margin of the head. First 

 antennae 3-segmented, second antennae 2-segmented. Thorax com- 

 posed of seven free segments, each of which bears a pair of subchelate 

 pereiopods ; first pair of pereiopods smaller than the remaining pairs. 

 Abdomen 6-segmented ; first five segments each bear a pair of conical 

 ventral appendages. Sixth .segment terminating in two lateral and 

 a smaller median conical process; asymmetrical, the right process 

 being longer than the left. 



Types. — Female, in the Peabody Museum, Yale University; male, 

 U.S.N.M. No. 65146. 



