Anoplura of the Canadian Arctic Expedition, 1913-18. 
t 
G. F. Ferris, Stanford University, California. 
The material submitted to me for examination contains two species, in 
addition to specimens ot the human louse Pediculus humanus capitis which have 
been examined by Prof. G. H. F. Nuttall and are recorded in this report. The 
species are as follows: — 
Linognathus setesus (Olfers). 
Great numbers taken from a white fox, Alopex lagopus innuitus (Merriam), 
Cross island, north coast of Alaska, January 18, 1918, by A. Castel. 
This is the first published record of the occurrence of this species from 
fox, as it had previously been recorded only from the domestic dog; but I have 
at hand specimens from a captive fox in Massachusetts. The specimens from 
foxes differ not at all from those taken from the dog. The species ordinarily 
passes under the name of Linognathus piliferus (Burm.). 
Echinophthirius horridus (Olfers). 
Specimens from Phoca hispida, Schreber, Collected by F. Johansen. 
Beaufort sea, Alaska, April, 1914. 
These specimens are quite inseparable from others from Phoca vitulina 
Linneus, Shetland islands, and Phoca richardii geroniniensis Allen, coast of 
California. The species was ordinarily passed under the name of Echinophthirius 
phocoe (Lucas). 
REPORT ON Pediculus COLLECTED FROM ESKIMOS. 
On the 22nd of Noveml)er, 1917, I received six specimens of lice from Dr. 
C. Gordon Hewitt, Dominion Entomologist, Department of Agriculture, Ottawa, 
the same bearing a label stating that they had been collected from the head 
hairs of Copper Eskimos, Dolphin and Union straits, Coronation Gulf region, 
by F. Johansen, of the Canadian Arctic Expedition duringthe winter of 1915-16^ 
On examination they pvovedtoheS mtilefi&ndS females Pediculus humanus 
capitis, typical specimens and fairly dark in respect to pigmentation. So far it has 
been impossible to detect any difference between these and other head lice 
from different parts of the world. 
G. H. F. Nuttall, 
Quick Professor of Biology, Cambridge. England. 
November 30, 1917. 
^Specimens of Pediculus were also collected on Copper Eskimo by Mr. D. .lenness, ethnologist, of 
the expedition. 
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