22 
E. B. Wilson — Pycnogonida of New England. 
Comm., 1874). Frequently dredged by the U. 8. Fish Commission 
off Salem, Eastport, Halifax, etc., in from 20 to 100 fathoms; also on 
Cashe’s Ledge, and Jeffrey’s Ledge, and in Casco Bay; and on St. 
George’s Banks, in 50 fathoms, by Smith and Harger, in 1872. It is 
commonest on rocky or gravelly bottoms, but occasionally occurs on 
soft mud. At Halifax it was taken in Bedford Basin, where the bot- 
tom is a very offensive soft oozy mud. 
Nymphon hirtipes Bell. 
t Nymphon hirtuni Fabr.. Ent. Syst., vol. iv. p. 417, 1794; Kroyer, Nat. Tidss , 
lste Bind. 2det Haefte p. 113; Toy. en Scand.. Laponie, etc., PI. 36, figs. 3a-g ; 
Buehholz, Zweite Deutsche Nordpolfahrt, p. 397, 1874; Miers, Ann. and Mag. 
Nat. Hist., 4th series, vol. 20, No. 116, pp. 108-9, PI. IV, fig. 3, 1877. 
? Nymphon hirsutum Sabine, Supplement to the Appendix, Capt. Parry’s First 
Voyage, p. 226. 1824. 
Nymphon hirtipes Bell, Belcher’s Last of the Arctic Voyages, Crust., p. 401, PI. 
XXXV, fig. 3. 1855. 
Plate V, figures 2, 3. Plate VI, figures 2 a to 2 k. 
Body very robust, lateral processes scarcely separated. Oculifer- 
ous segment broad and stout, neck very thick. Oculiferous tubercle 
much elevated, slender, rounded. Eyes ovate, black. Abdomen 
slender, tapering from the middle toward the base and tip. 
Antennte very hairy, rather stout, basal joint slightly longer than 
the rostrum ; claws of chelse slender, acute, very strongly curved, 
when closed crossing each other at a considerable distance from the 
tips. The spines, with which they are armed, are rather long, slender, 
and not very closely set ; toward the base they become strongly 
curved or even hook-shaped. 
Palpi very stout ; basal joint nearly quadrate, half the length of the 
second ; the remaining joints decrease regularly to the last. The 
appendage is densely hairy ; on the outer three joints the hairs are 
densely plumose. 
The accessory legs differ considerably in the sexes. In the male 
there are three short basal joints, followed by two which are con- 
siderably longer, nearly equal, and somewhat clavate ; the sixth is 
about two-thirds the fifth, and the remaining joints become succes- 
sively smaller to the last, which is acute and claw-like, and armed 
below with a series of spines. In the female the appendage is larger 
and stouter, the fifth joint is about twice as long as the correspond- 
ing joint in the male, and near its outer extremity it is swollen and 
furnished on each side with a dense tuft of long hairs; the spines of 
the outer joints are scarcely denticulated and alike in both sexes. 
