E. B. Wilson — Pycnogonicla of New England. 
15 
twice as long as broad, slightly bifid at the extremity. Oculifer- 
ous tubercle prominent, acute, placed far forward. Eyes ovate, light 
brown to black. 
Rostrum large, longer than the oculiferous segment, somewhat con- 
stricted basally, so as to appear clavate; extremity subglobose. 
Antennae long and slender, hairy, their bases closely approxima- 
ted ; basal joint extending beyond the extremity of the rostrum ; 
chelae stout, hairy, claws acute, opposable edges smooth. 
Accessory legs stout, roughened by minute tubercles, the outer 
joints with many short stout hairs, most of which are directed 
backward ; the two basal joints are very stout, the first shorter 
than its width, the second about twice as long; third nearly two 
and a half times the second, somewhat clavate, suddenly constricted 
a short distance from the base ; fourth half the length of the third, con- 
siderably longer than the fifth; sixth much smaller than the preceding. 
Legs very long and slender; first and third joints very short; 
second longer and clavate ; the three following joints are much 
longer, sixth longest; tarsus very short, deeply emarginate; pro- 
podus curved, with a rounded lobe near the base bearing five or 
six strong spines ; these are followed by a series of much smaller 
ones; dactylus stout, about two-thirds the length of the propodus. 
Entire surface of the body scabrous. Legs with a few scattered hairs, 
which are most numerous on the outer joints. 
The sexes resemble each other closely, but the male does not 
possess accessory legs; the males are, as a rule, slightly larger 
than the females. Length 7 millimeters ; legs 30 millimeters. 
This species is nearest to “ Phoxichilidium petiolatum ” Kr., of 
Europe. The latter has, however, according to the figures, the 
anterior segment much more slender, and it is emarginate between 
the bases of the antennse, which are thus separated by a distinct 
interval ; the posterior segment is represented as stouter and shorter ; 
the rostrum more abbreviated ; and the propodus of a different shape. 
Ivrijyer figures the accessory legs with seven joints, probably mistak- 
ing the constriction near the base of the third joint for an articulation. 
Common between tide-marks and down to six fathoms in Vine- 
yard Sound, where it is found on shelly bottoms “clinging to and 
creeping over the hydroids and ascidians.” “ It is most frequently 
deep purple in color, but gray and brown specimens are often met 
with.” ( Verrill). It is also taken rarely in the l>ay of Fundy, there 
being a single specimen in a vial with Phoxirhilidium maxillare and 
Pycnogonum littoroie from East port. 
