from Spitsbergen and Bear Island. 167 
at least four species of Afvcaria have been described from the 
Arctic regions ; these are :—M/. humilis, Kulez. (4), M. cen- 
trocnemis, Kulez. (4), JZ. enea, Thor. (‘ Remarks on Syno- 
nyms of European Spiders,’ 1870-1873, p. 175), and M. fo- 
veata, Strand (5)—the two former from Siberia and the two 
latter from northern Norway. Of M. labradoriensis, Marx, 
from Labrador, [ have no information beyond its existence. 
M, eltonii may turn out to be the male of any of these, the 
first four of which are only known in the female sex ; but 
from the descriptions of these I should think it quite 
unlikely. The proper course seems to be to describe it now. 
This is the first spider not an Argiopid to be found in 
Spitsbergen. It belongs, of course, to the family Clubionidee. 
Facies.—Resembles a large specimen of M. pulicaria, but 
has no white abdominal bands or spots. ‘The specimen 
shows a few thick white hairs on each side of the cephalo- 
thorax near its base, but these are not numerous enough to 
€ seen without a microscope. 
Length.—Cephalothorax 1:5 mm., abdomen 2°1 mm., total 
3°6 mm. 
Cephalothorax.—Smooth, dark reddish brown, mottled and 
striped with deeper brown markings radiating from a dark 
wedge-shaped mark at the thoracic juncture. Covered with 
very fine white pubescence, and showing the aforesaid patches 
of thickened white hairs towards its posterior border. 
Sternum.—Dark red brown, almost black, covered with 
long fine hairs and without squames. 
Hyes.—Anterior row strongly procurved—z. e., concave in 
front. Centrals the smallest, each more than a diameter 
apart and less than a diameter from the adjacent laterals, 
Posterior row slightly procurved. Eyes subequal or centrals 
slightly less than laterals, all elliptical in shape. Centrals 
obliquely placed, more than a diameter apart and about the 
same distance from the laterals. 
Falces.—Dark red-brown ; not rugose, bearing no squames, 
covered with long bristly hairs. 
Palpi.—Maxille dark red-brown, with a whitish patch at 
the tip on the inner side. 
Femur, patella, and tibia yellow-brown, marbled with 
darker brown, and darker above than below. 
Tarsus dark brown, almost black, paler at the tip. It bears 
on its under surface between the palpal organs and the tip 
three long strong spines, the one present in some other 
species on the outer side being absent ; all these articles are 
covered with long simple hairs. 
The patella is *25 mm. long and :15 mm. broad from side 
