Anoplura of the Canadian Arctic Expedition, 1913-18. 



G. F. FERRIS, Stanford University, California. 



The material submitted to me for examination contains .two sp-e ; 

 addition to specimens ot the human louse Pediculus humanus capiti* which have 

 been examined by Prof. G. H. F. Nuttall and are recorded in this n-port. The 

 species are as follows: 



Linognathus setesus (Olfcrs). 



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 geronimensis Allen, coast of 

 California. The species was ordinarily passed under the name of Echinophthirius 

 phoco3 (Lucas). 



REPORT ON Pediculus COLLECTED FROM ESKIMOS. 



On the 22nd of November, 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 during the winter of 1915-16 1 . 



On examination they proved to be 3 males and 3 females Pediculus hu manus 

 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. Jenness, ethnologist, of 

 the expedition. 



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