The Spiders collected by the Canadian Arctic Expedition, 
1913-18. 
By J. H. Emerton. 
This collection includes thirteen species, three of which are described as 
new. Two of these are minute spiders, living under loose stones along the 
shore, and the third is a large Lycosa, living in large numbers among the low 
plants of the tundra. Of the other ten species, three have been found by earlier 
explorers in Greenland, Spitzbergen, or Siberia, and appear to be exclusively 
Arctic; the rest have been found much farther south. The four species from 
Nome and Teller, Alaska, all occur in the White mountains of New Hampshire, 
and two of them at various stations across the continent and south into the 
United States. Lycosa pictilis, found at Bernard harbour, has long been known 
in the upper parts of the White mountains, and is also found on the coast of 
Labrador. Xysticus himaculatus, found also at Bernard harbour. Dolphin and 
Union strait. Northwest Territories, is known from the Rocky mountains near 
Banff and from the mountains of Colorado. The two species of Pardosa are 
widely distributed over the northern part of the continent. 
All types described in this paper are in the Canadian National Collection 
of Insects, Ottawa. The specimens were collected by Mr. F. Johansen. 
Erigone arctica White (1852).^ 
This resembles the common Erigone dentigera of the New England coast. 
The palpus (PI. I, fig. 1) has the same general length and proportions, but the 
process of the patella is somewhat longer, and the end of the tibia wider, with 
the inner and outer points sharper and more divergent than in dentigera. It 
has been found at Cornwallis island and in Spitzbergen. 
Locality: Cockburn point, Dolphin and Union strait, Northwest Terri- 
tory, autumn of 1914. 
Typhocraestus spetsbergensis (Thor.) Kulczynski.^ 
This is 2 mm. long, and grey, without any markings, the legs very little 
lighter than the thorax. The male palpus has the tibia a little longer than wide 
and slightly widened at the end. The front edge is nearly straight except a 
small tooth on the outer corner, which is slightly curved inward at the point (PI. 
I, figs. 2 and 4.) The tarsal hook is small and curved in more than half a circle, 
the basal end showing along the edge of the tarsus when seen from above. The 
palpal organ is distorted in all the specimens, but shows the slender trans- 
parent appendage and the other details as figured by Kulczynski (PI. I, fig. 3). 
Locality: Three males and two young from Spy island (Jones islands, 
known also as Thetis islands), on the Arctic coast of Alaska, September 3, 
1913, under green algae on the wet seashore. Found also by the English Polar 
Expedition of 1875-6 in latitude 82° 33' and in Siberia and Spitzbergen. 
Tmeticus alatus, n. sp. 
A little over 2 mm. long and pale yellow without markings like pale indi- 
viduals of Tmeticus flaveolus Banks and T. longisetosus Em. The male palpus 
seen from above has the tibia longer than wide with a large curved tooth on 
' Cambridge, Annals and Magazine of Natural History, 1877. 
2 Memoirs Acad. Sf Petersburg, 1902. Strand, Fauna Arctica, 1906. Erigone spetsbergensis Thorell, 
Swedish Acad., 1872. 
