E. />. Wilson — Pycnogonida of New England. 
11 
two prominent conical tubercles, each of which is tipped by a hair. 
The lateral thoracic processes are very broad and are not separated 
by any interval ; they bear, on the outer margin, two to four acute, 
hairy tubercles. Abdomen twice as long as broad, truncate, hairy. 
Rostrum slightly hairy, acute-conical, as long as the oculiferous 
segment, with a constriction on each side, below, giving it the appear- 
ance of being articulated at this point. The mouth is terminal and 
surrounded by a rosette of filamentary processes. 
Antennae very stout and swollen, hairy, tipped with amber-color, 
about twice as long as the rostrum ; claws of chela? blunt and rounded ; 
basal joints enlarged near their attachment ; the second joint has, on 
its lower margin, a prominent rounded tubercle behind which the 
dactylus closes. 
Accessory legs slender, eleven-jointed ; the two basal joints are 
short, the third longer, the fourth and fifth still longer, sixth about 
as long as the third ; the remaining joints are shorter and decrease 
in size to the last, which is spine-like and trifid at its extremity ; the 
four outer joints are armed with four or five stout, smooth, curved 
spines. 
Legs very stout, the three basal joints short and overlapping each 
other ; fourth joint as long as the three basal ones, much distended 
with the ovaries in the specimen described ; fifth as long as the 
fourth, but much more slender; sixth still longer and more slender; 
tarsus very short, nearly triangular ; propodus tapering from the 
base, slightly curved, armed on the inferior margin with five or six 
stout curved spines ; dactylus curved, acute, about two-thirds as 
long as the propodus. 
All of the legs bear a number of prominent, conical, spiny tuber- 
cles. These are arranged in longitudinal rows on some of the joints, 
particularly on the fifth and sixth, which thus appear deeply serrate 
on the margin. The entire surface of the body is rough and more or 
less hairy. 
Color, in alcohol, light brown. Length, 3 millimeters; legs, 7 - 5 
millimeters; accessory legs, 3 7 millimeters. 
Of this species there is but a single female specimen in the collection 
of the Peabody Museum, dredged by the U. 8. Fish Commission in 
Johnson’s Hay, near Fast port, Maine, in 12 fathoms, rocky bottom. 
Stimpson records it from deep water otf Grand Manan, “on Ascidice 
callosa?” 
