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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 42. 



The first five segments of the abdomen are short and subequal, the 

 first being a little shorter than any of the others. The lateral parts 

 of the first and second segments are covered by the seventh thoracic 

 segment. The sixth or terminal segment is constricted in the middle, 

 and has the posterior margin truncate. The peduncle of the uropoda 

 occupies the space between the terminal segment and the lateral part 

 of the fifth segment. The inner branch is short, not reaching to the 

 extremity of the terminal abdominal segment by some distance. The 

 outer branch is minute and is situated about the middle of the inner 

 margin of the peduncle. 



About 30 specimens were collected at Mandeville by Dr. Thomas 

 Barbour. 



Types in the Museum of Comparative Zoology; cotypes in the 

 United States National Museum. 



This species is closer to Cubaris silvarwn (Dollfus) 1 than to any 

 other described species. It differs from that form in not having the 

 coxopodites of the first thoracic segment distinct on the entire length 

 of the edge, in having the coxopodite of the second segment smaller 

 and more distant from the lateral margin, and in having the tubercles 

 on the body more distinct and differently arranged. 



i Proc. Zool. Soc. London, 1896 pp. 393-394. 



v 



