PYCNOGONIDA—CALM AN. 
Proboscis very stout, expanding from base for less than half its length, then 
cylindrical. 
Abdomen horizontal, fusiform, about two-fifths of length of trunk. 
Chelophore stout, scape armed above, and especially on inner face, with strong 
spiniform setae. Chela with palm less than twice as long as wide, much longer than 
immovable finger, which forms an angle of roughly 120° with its inner edge. 
Immovable finger with setose pad extending for two-thirds of its length and with nine 
teeth on inner edge. 
Palp with second segment longer by one-half than third, which is about three 
times as long as fourth or fifth. 
Legs very stout but tapering rapidly from end of first tibia. Femur equal to 
first tibia and longer by one-fourth than second. Tarsus shorter than propodus, which 
is less than three times as long as claw; auxiliary claws not more than one-fourth of 
length of main claw. Legs beset with stout 
roughened spines much 
shorter than the 
diameter of the segments carrying them ; 
on 
the tibiae 
the spines are 
closely set in two 
dorsal, two lateral, and one ventral row. 
On ventral edge of femur 
o 
s a row of about 
seven gland-tubercles. 
Measurements, in mm .— 
N. proximum. 
N. villosum. 
Holotype. 
Holotype. 
Length of proboscis 
3 • 0 
3-04 
Diameter of proboscis 
1 * (35 
1-52 
Length of trunk 
5-0 
4-2 
Width of cephalon 
2-75 
2-8 
Width across second lateral processes 
4-2 
4-0 
Length of abdomen 
2-1 
2-0 
Third right leg— 
O o 
Coxae (together) 
3-4 
3-4 
Femur .... 
3-5 
3 • 6 
First tibia 
3*5 
4-0 
Second tibia . 
2-8 
3-8 
Tarsus .... 
1-2 
1-4 
Propodus 
1-4 
1-6 
Claw .... 
•5 
• G8 
Palp- 
Second segment 
1-8 
1 ’ 72 
Third ,, 
1 • 2 
L36 
Fourth ,, 
• 38 
■ 46 
Fifth ,, 
•38 
• 7 
Remarks. — This species approximates 
in 
many of 
its characters 
to Chcetonymp/ion 
villoswn, Hodgson, but differs conspicuously 
from it 
in having the 
o 
covering of long 
O O 
hairs replaced by short stout spines. It further differs in the proportions of various 
F 2 
