138 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



vol. 39. 



are more acute at their extremities. The epimera of all the segments 

 reach the post-lateral angles of their respective segments. 



The first segment of the abdomen is the shortest, one-half mm. 



long; the^three following are subequal, each being 

 1 mm. in length; the fifth segment is mm. 

 The lateral parts of the segments are drawn out 

 posteriorly in acute processes. The sixth or ter- 

 minal segment is as long as wide, 9 mm. by 9 mm. 

 At the base it is 8 mm. and then widens a little 

 before converging to a triangular extremity with 

 the apex rounded. The branches of the uropoda 

 are equal in length and do not reach the tip of 

 the terminal abdominal segment by nearly 2 mm. ; 

 the outer branch is produced to an acute extremity; 

 the inner branch is oblique, with the outer post- 

 lateral angle acutely produced; the inner branch is 

 somewhat wider than the outer branch. 

 All the legs are prehensile. 

 Three specimens were taken from a gar-pike. 

 Type-specimen.— Cat. No. 40939, U.S.N.M. 

 This species differs from the other two found on 

 the Atlantic coast , in the larger head, shorter 

 antennae, larger eyes, which are also closer together, in the shape 

 of the head and the terminal abdominal segment, the much shorter 

 uropoda, and in the shape of the uropoda. 



ANILOCRA ACUTA. X 2. 



