52 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXVII. 



Fig. 29.— Head and first 

 thoracic segment of 

 indusa carinata. \ 5. 



FLABELLIFERA, or CYMOTHOIDEA. 



Family CYMOTHOID^E. 



INDUSA" CARINATA, new species. 



Body very convex, having a decidedly hunched appearance. Thorax 

 large, rounded, almost as wide as long, the last two segments rapidly 

 converging to the narrow abdomen. Abdomen 

 nearly three times narrower than greatest width 

 of thorax, with all the segments of equal width. 

 Head about two and a half times narrower 

 than tirst thoi'acic segment and four times nar- 

 rower than fourth segment; front triangular in 

 shape and produced into an acute point pro- 

 jecting between the basal joints of the antenna?. 

 Eyes distinct and situated at the sides and about the middle of the 

 head. First pair of antennje, which are almost contiguous being 

 separated only by the very acute median point, 

 reach to the eyes; flagellum seven jointed. Second 

 pair of antenna extend to the posterior margin of 

 the head; flagellum nine jointed. 



First thoracic segment rounded anteriorly and 

 posteriorly, the sides of the segment surrounding 

 the head, the lateral angles extending to the eyes. 

 The first four segments gradually increase in width. 

 The fourth and fifth are about equally wide. The 

 sixth and seventh rapidly decrease in width, con- 

 verging to the narrow abdomen. The epimera are ^•«- 

 well developed on all the segments with the excep 

 tion of the first; they are narrow and elongate, rounded posteriorly 

 and not reaching the posterior margin of their respective segments. 



The abdomen is likewise very convex and is nearly 

 three times narrower than the thorax at its greatest 

 width. The segments are of equal width. The termi- 

 nal segment is rounded posteriorly or slightly triangu- 

 lar. The uropoda are very short, less than half the 

 length of the terminal segment; the branches are equal 

 in length. 



There is a high carina on the four posterior pairs of 

 legs, and a small one on the three anterior pairs. Color 

 reddish brown. 



Two specimens, a male and a female, were collected 

 by Mr. C. H. Gilbert from the west coast of Panama. They were 

 found in the mouth of Miigil hospes. 

 Type.—C2^i. No. 28961, U.S.N.M. 



30. — INDUSA CARINA- 

 TA, NEW SPECIES. X 2|. 



Fig. 31.— Leg of 

 seventh pair of 



iNDUSA CARINATA. 



X7. 



«Schioedte and Meinert.— Naturhistorisk Tidsskrift (3), XIV, pp. 334-335. 



