0. Harger Isopoda from New England. 379 



ing around the basal segments of the first pair. Pleon six- 

 jointed ; uropoda short, biramous, each ramus two-jointed, the 

 outer more slender than the inner, half its length and bearing 

 a long bristle at the tip. Length 2'5mm. 



This species was taken along with P. limicola and unfortu- 

 nately only a single specimen is as yet known. 



Yale College, April, 1878. 



