ISOPOD3 OF NOBTH AMERICA. 



119 



on either side of the apex for some distance is denticulate. The inner 

 branch of the uropoda is a very little longer than the terminal abdomi- 

 nal segment. It is posteriori}^ very acutely produced with an emar- 

 gination in the exterior margin near the apex. Both inner and outer 

 margins are denticulate, the four teeth within the emargination being 

 very much larger than the others. There is also a large tooth on the 

 inner margin close to the apex of the branch, giving the extremity a 

 bidentate appearance. The outer branch is half as wide as the inner 

 branch, is somewhat shorter, not extending beyond the emargination 

 in the outer margin of the inner branch, has the extremity acutely 

 produced and bidentate, and has both margins denticulate. The pedun- 



FlG. 102. CONILERA CYLINDBACEA (AFTER HANSEN). a, ADULT FEMALE. 6, SECOND LEG. C, FIFTH 



LEG. d, SEVENTH LEG. (ENLARGED.) 



cle has the inner angle produced and it extends two-thirds the length 

 of the terminal abdominal segment. 



The first three pairs of legs are prehensile, the last four pairs ambu- 

 latory. In the first three pairs the propodus is armed with three 

 spines, the carpus with one large spine and one small spine in the first 

 pair or two smaller ones in the second and third pairs; the merus with 

 five or six blunt ones on the inner margin and one long one at the 

 outer distal extremity; the ischium is armed with one spine in the 

 second and third pairs. 



The two specimens from North America in the collection of the 

 U. S. National Museum are small, measuring 2 mm. : 10^ mm. 



The description is from a specimen obtained from the Naples 

 Zoological Station. 



