Fj. B. Wilson — Pycnogonidci of New England. 
9 
Pallene empusa, sp. nov. 
Plate III, figures 2 a to 2 g. 
Body robust, smooth, distinctly segmented. Lateral processes 
well separated. Neck long, very slender at base. Oculiferous tuber- 
cle sub-acute, small, but prominent. Abdomen very small and short. 
Rostrum nearly hemispherical, evenly rounded, smooth. 
Antennae sparingly hairy, short and stout. The opposable edges 
of the second and third joints are coarsely toothed, the teeth evenly 
rounded, so that the outline is deeply sinuous. There are about seven 
of these on the second joint, and many more, smaller ones, on the 
dactylus. 
Accessory legs in the female about one-third the legs ; the third 
joint is curved and about equal to the two basal joints united. 
Fourth joint considerably longer than the third, suddenly expanding 
at its distal extremity below ; the five remaining joints are much 
shorter and nearly equal ; the terminal one smoothly rounded at the 
extremity; each of the outer four joints is armed with a series of 
seven or eight spines ; these are very broad and thin, with minute 
slender teeth, which do not extend to the base and are usually term- 
inal ; some of the spines are truncated, others smoothly rounded at 
the extremity. In the male the appendage is considerably smaller, 
the third and fourth joints are much shorter and stouter, and the lat- 
ter is not expanded at the extremity. 
Legs enormously long, over four times the length of the body, very 
slender near the base, much stouter distally; the first and third 
joints are short, the second much longer, about five times the first; 
the three following are much longer and very stout ; the fourth is 
usually distended by the generative organs; tarsus very short and 
nearly triangular; propodus nearly straight and very slender; it is 
very narrow at the base, expanding to two and a half times this 
width, near the extremity ; on the inferior side, near the base, are four 
or five stout spines, followed by a series of much smaller and more 
slender ones; dactylus slender, more than half the length of the pro- 
podus; auxiliary claws slender, two-thirds as long as the dactylus. 
The legs bear a few scattered stout hairs, most numerous distally. 
Length 1*5 millimeters; extent 13 millimeters. Color in alcohol, 
white. 
This interesting species corresponds closely to the European Pal- 
lene brevirostris Johnston, but has, according to figures of t hat species, 
a much longer neck and shorter rostrum, besides differences in the 
Trans. Conn. Acad., Vol. V. ‘i July, 1878. 
