PYCNOGrONIDA—CALMAN. 
29 
Nymphon charcoti, Bouvier. 
N. charcoti, Bouvier, 1911, p. 1138 ; id., 1913, p. 81, text-figs. 32-34. 
Occurrence .—Station 294, Ross Sea, 158 fathoms ; 2 $, 1 
McMurdo Sound, 80 fathoms ; 1 ?. 
Measurements, in mm .— 
Length of proboscis 
Diameter of proboscis 
Length of trunk 
Length of cephalic segment 
Greatest width of cephalon 
Width of neck 
Diameter of ocular tubercle 
Width between first and second lateral processes 
Width across second lateral processes 
Third right leg— 
O O 
$■ Station 349, 
coxa 
Second coxa 
Third coxa 
Femur . 
Second tibia 
Tarsus 
Propodus 
Claw 
Palp 
Second segment 
Third 
Fourth ,, 
Fifth 
Station 349. 
? 
5 
8 
2 
16 
8 
4 
1 
1 
1 
11 
4 
9 
3 
23 
24 
32 
8 
5 
4 
4 
5 
4 
5 
56 
5 
0 
12 
48 
0 
88 
0 
0 
0 
5 
0 
0 
0 
Remarks .—Our largest specimen, of which measurements are given above, 
considerably exceeds the maximum dimensions given by Bouvier, and shows that the 
species takes a place among the largest of the genus. Its limbs are much less setose 
than those of the male figured by Bouvier, but the other two females, as well as the 
male, have the setse even longer and more numerous than in his figure. The male 
has the femora considerably less dilated than in Bouvier’s specimen, not differing in 
this respect from the females. The claws of the legs are in no case conspicuously 
longer than the propodus, and in the specimen measured they are distinctly shorter. 
In all other respects the specimens agree very well with Bouvier s account, and confirm 
his opinion that the differences between his specimens were not of specific value. 
