O, Harger—Isopoda from New England. 377 
. . NOV. 
broadest at the base of the pleon. Head broader but shorter 
than the first thoracic segment, narrowed to a point in front and 
less acutely behind. Eyes prominent, black, within the margin 
of the head. Antennuls, when reflexed, attaining the third 
thoracic segment; first segment large but not longer than the 
second ; third shorter than the second, followed by a short first 
flagellar segment, second and following segments about twenty 
im number, obconic, fitting into each other, flattened and naked 
on one side, which is the outer and somewhat inferior side in the 
reflexed organ, densely elongate-ciliate distally, except on the 
flattened side ; cilia attaining about the fifth following segment. 
Antenne hardly surpassing the peduncle of the antennule, 
eight-jointed. Maxillipeds with a quadrate basal segment, emar- 
pete externally for the subtriangular external lamella, and 
earing a single scarcely smaller terminal segment, truncate and 
ciliate at the tip. Thoracic segments slender, margined, the 
seventh but little over half as long as the others, First pair 
of legs moderately enlarged, segments well separated, dactylus 
Strong, shorter than the inner margin of the propodus; remain- 
ing pairs of legs slender. Pleon about as long as the last three 
_ thoracic segments, first five segments consolidated along the 
median line, each rising into a low broad tubercle on each side 
of the median line; last segment as long as the preceding five ; 
telson elongate-ovate obtusely pointed. Uropoda equaling the 
telson. Length 11mm., breadth 0°9mm., color in life brownish 
and somewhat mottled above, lighter below. 
This species has been found on the New England coast 
from Noank Harbor, Conn., to Casco Bay, Maine. 
Paraianais algieola, sp. nov. 
Tanais filum Harger, Rep. U. S. Com. Fish and Fisheries, 
part 1, p. 578. 1874, non Stimpson. _ 
Eyes conspicuous, black, plainly articulated, larger in the 
males, Antennule in the females three-jointed, tapering, 
Setose at the tip, first segment as long as the last two which 
are subequal ; elongated and eleven-jointed in the male, the 
first segment long, curved upward near the base, last eight 
segments with olfactory sete. Antennw short, five-jointed, 
deflected, fourth segment longest. First pair of legs robust, 
hand short and stout in the female, digital process scarcely 
toothed, bearing three sete near its inner margin; hand in 
males strongly chelate, digital process elongated, curved, two- 
toothed; dactylus curved, slender, with about seven setiform 
Spines on its inner margin ; carpus in the males long and stout. 
