378 0. Harger—Isopoda from New England. 
Second pair of legs elongated, basis flattened and curved, dac- 
tylus slender but shorter than the propodus. Bases of last 
three pairs of legs swollen. Uropoda bearing sete at the tips 
of the segments, biramous; outer ramus short, scarcely if at all 
surpassing the basal segment of the inner ramus which is six- 
jointed and tapering. Length 2°2mm., breadth 0.83mm. Color 
nearly white. 
his species is rather abundant among eelgrass and alge 
at Noank an oods-Holl, and probably other localities on 
the southern shore of New England. I formerly considered it 
as identical with Zanazs filum Stimpson and supposed its range 
to extend as far as the Bay of Fundy. I now regard that as 
error, as it is probable that 7. filum is a true Tanais with 
simple uropoda, though I have as yet seen no specimens from 
the Bay of Fundy, nor any fully answering to Stimpson’s 
description. 
Paratanais limicola, sp. nov. 
long as the third. The dactylus of the second pair of legs, 
with its slender, acicular, terminal spine is longer than the 
propodus. The pleon is not dilated at the sides. The uro- 
poda have the outer ramus two-jointed, slender, and surpass- 
ing the basal segment of the inner ramus which is five-jointed, 
peas the basal segment long and imperfectly divided. Length 
‘Smm. 
This specie was obtained on a soft muddy bottom in forty- 
eight fathoms, Massachusetts Bay, off Salem, in the summer 
of 1877, by the United States Fish Commission. 
the antenns, basal segment subquadrate, hand or propodus less 
robust than the carpus; digital process of Saobia 
dactylus short. Second (first free) thoracic segment two-thirds 
as long as the third, which is equal to the fourth and fifth ; sixth 
and seventh progressively shorter. Second pair of legs scarcely 
more slender than the following pairs, basal segment not curv: 
