H. Richardson — Isopods of the Bermudas. 295 



The terminal segment of the body is about as broad as long, the 

 entire margin smooth, with a small rounded lobe between the basal 

 joints of the uropoda. 



The uropoda are very long, much longer than the abdominal 

 segment. The basal joint is about two-thirds the length of the 

 abdominal segment, and is narrower at the base than at the apex. 

 The two branches are of nearly equal length, the outer one being 

 slightly shorter, and are longer than the basal joint. 



The first pair of legs in the male are remarkably long, being one 

 and two-thirds times the length of the body, and are prehensile. 

 The basis is as long as the width of the first thoracic segment, and 

 has the distal end very much enlarged and inflated. The ischium is 

 not more than half the length of the basis. The merus is a little 

 longer than the basis, and is enlarged at its distal end. The carpus 

 is very much elongated, is longer than the ischium, is greatly 

 enlarged distally, and has its upper distal margin armed with three 

 large triangularly-shaped processes. The propodus has the inner sur- 

 face armed with two long, sharp triangular processes, its distal end 

 being widely expanded and rounded on the inner surface. The 

 dactylus is biunguiculate. 



The other legs are of normal structure, ambulatory in character, 

 and biunguiculate. In the female the first pair of legs are similar 

 in structure and size to the other legs. 



A number of individuals were collected by George Brown Goode 

 at the Bermudas. 



Type specimens in Peabody Museum, Yale University. Cat. No. 

 3203. 



Stenetrium stebbingi Richardson, sp. nov. 



Plate XXXIX. Figures 46-49. 



Body long, narrow, depressed. Color light yellow, with markings 

 of black. 



Head narrowed posteriorly, widening anteriorly ; the antero-lateral 

 angles produced into narrow acute processes, curving slightly inward; 

 the anterior margin is produced in a rostrum, which is truncated, on 

 either side of which is a triangular process. Eyes obliquely situated 

 on the anterior portion of the head. 



First pair of antenna? are placed between the two triangular pro- 

 cesses and the rostrum ; the first peduncular joint is large, broad, 

 the two following joints narrow ; the flagellum is composed of nine 



