PYCNOGONIDA. ys 
The Leg attains a length of 32mm. Of the three coxe the second is about as 
long as the other two together, and is much enlarged distally. The first bears a 
mid-dorsal row of a few long setz and a distal fringe of the same kind. The second 
bears two dorso-lateral rows and the distal fringe ; and ventrally, a conspicuous fringe 
between the distal extremity and the genital apertures. The third coxa is covered 
ventrally and laterally with setze and carries ventrally a very prominent distal fringe. 
The proportions of the three following joints are 8°5:8°5:10, these joints are covered 
with lines of very long slender setze, their great length making it difficult to determine 
the precise number of rows. On the femur they are most abundant ventrally, except 
near the distal extremity. On the two tibize the ventral surface is much more scantily 
supplied. The distal fringe of the second tibia is rather spinous ventrally. The 
tarsus is very small, setose, and with a few spinous sete at its ventral extremity. 
The propodus is curved, covered with rather short sete, a fringe of longer ones distally ; 
there is no heel. Ventrally at the proximal end of the joint are two or three stout 
spines, and a band of smaller ones of irregular size extends to the end of the joint. 
The terminal claw is long and slender, with two well-developed but not large auxiliaries. 
Small sete also occur more or less abundantly throughout the limb. 
The Genital apertures of the female occur on the enlarged part of the second coxa 
of every lee. In the male these orifices occur at the apex of a pointed tubercle on the 
two posterior legs only. The male as a rule is more setose than the female, and on 
the mid-ventral surface of the femur there is the duct so characteristic of the males of 
this genus ; in this species it is long and slightly twisted, conspicuous even among the 
long sete. The joints of the ovigers up to the sixth joint are more strongly developed, 
longer, and all are more setose than those of the female. One specimen has three 
perfect ovigers, two on one side being in contact with one another. The eggs are 
rather large, and held round each oviger in a single rounded mass. 
Several specimens of this species were taken off the Ice Barrier in the Ross Sea, 
300fm., mud bottom. Iam unable to find any satisfactory reason for separating them 
from the species of Dr. P. P. C. Hoek. They are-smaller, and the only character which 
can be used to separate them is the comparative length of the four terminal joints of 
the oviger, but this does not seem to me to be sufficient. 
PALLENOPSIS HIEMALIS. 
(Plate I., fig. 4; Plate II., fig. 3.) 
Body well built, with lateral processes widely separated, but of variable length, and having a 
tubercular swelling at the dorsal extremity. 
Chelifori and abdomen both proportionally long. 
Palps, a rather long stump. 
Legs clothed with short, stiff sete. 
Body well built, with the lateral processes rather widely separated, as long as the 
trunk is broad, and each bearing distally a stout tubercle of no great elevation. 
0 2 
