PYCNOGONID A—CALMAN. 
13 
(Holotype.) 
6 
? 
Length of proboscis .... 
31-0 
35-25 
Greatest diameter of proboscis 
6-25 
7-0 
Length of trunk .... 
13-75 
16-25 
Width across first lateral processes 
io-o 
11-5 
Length of abdomen .... 
5-75 
6-0 
Third right leg— 
O O 
Coxae ..... 
10-5 
12-0 
Femur ..... 
33-5 
40-0 
First tibia ..... 
31-0 
37-5 
Second tibia .... 
28-25 
32 • 5 
Tarsus ..... 
11-0 
12-0 
Propodus ..... 
9 • 5 
9-0 
Claw ..... 
9-0 
7" 5 
Palp— 
Second segment .... 
16-25 
19-5 
Third ,, . 
1-28 
2-0 
Fourth ,, . 
8-8 
11-2 
Fifth „ 
3-2 
4-0 
Sixth ,, . 
4-24 
5-2 
Seventh ,, . 
•8 
1-12 
Eighth ,, . 
2-0 
2-4 
Ninth ,, . . 
2-24 
2-8 
Remarks .—In the relative lengths of the distal 
segments of the palp this species 
approaches the group of species related to C. angusta, 
mt it differs 
widely from these 
not only in the much greater size of the proboscis, but 
also in the approximation of the 
lateral processes, in which respect it differs from all the “ longitar? 
od ” species except 
C. proboscidea and the new form described below as ( 
'. wilsoni. Among the species of 
this genus the curious chelate termination of the ovigers is only paralleled, so far as I 
know, in C. australis, but a similar condition is found in Bulimia c 
■hdata (Bohm) and 
Rhopalorhynclius tenuissimus (Haswell). The labial teeth are found in various degrees 
of retraction in preserved specimens of other species, and the widely gaping mouth of 
the specimens described above is partly due to this condition ; but 1 think that the 
teeth themselves are unusually small and the triangular mouth-frame is relatively 
larger than in any species with which I have compared it. 
The name of this, one of the largest species of Pycnogonida yet brought from 
Antarctic seas, is chosen to commemorate the heroic and ill-fated Leader of the 
Expedition by which it was obtained. 
