152 DR. CHARLES CHILTON ON THE SUBTERRANEAN 
second joint slender, one-fourth as long as the first, with a single 
seta at the apex. 
Telson cleft for three-fourths of its length; lobes widely 
separated, their outer border nearly straight, with one long 
plumed seta, and a smaller one one-fourth from the apex, mner 
border slightly convex, extremity with four stout sete. 
Length about 5 mm. 
Habitat. Ringwood, Hants; Warminster and Marlborough, 
Wilts ; and Dublin. (In Europe recorded from Munich.) 
This species appears to be less common than the preceding, 
and has consequently received less attention. 
I have specimens from Marlborough and from Dublin, and have 
algo been able to examine specimens from Munich; and though 
there are a few small differences that could easily be pointed out, 
I think these all belong to the one species. I feel pretty certain 
that WV. puteanus, Hosius, from Bonn belongs to this species, 
aud it seems not unlikely that VV. puteanus, Koch, from Regens- 
burg, also belongs to the same species. However this may be, it 
appears clear that the present species is quite a different form 
from NV. subterraneus, and that it is widely distributed in Europe 
and the British Isles. The points by which it may be distin- 
guished have mostly been mentioned in the brief description 
already given. Perhaps the most characteristic points are to be 
found in the gnathopoda, which have the carpus much longer in 
proportion to the other joints, and have the propodos articulated 
to it only at the distal end and lying in the same straight line as 
the carpus; while in JV. subterraneus the propodos usually lies 
nearly at right angles to the carpus, and its articulation with it 
is consequently oblique and occupies part of the short inferior 
margin. The propodos itself is not so broad as in WV. subter- 
raneus, aud hag the inferior angle of the palm produced in a very 
characteristic manner, especially in the first gnathopod. The 
amount of this projection varies a little in different specimens, as 
may be seen from a comparison of figs. 2 gn.", gn.*,and 3 gn.', 
gn2, and it appears to be greater in small specimens. Hig. 2 gn.’ 
shows the propodos of the first gnathopod of a small specimen 
(4mm. long) from Dublin, and in this the projection is very 
marked so that the gnathopod might almost be called imper- 
fectly “chelate” instead of “‘subchelate,” the inferior margin 
bears only two distinct transverse rows of sete, though the third 
and most proximal one is represented by a single seta. The 
e 
