4d Canadian Arctic Expedition, 1918-18 



The expedition specimens under this record approach most nearly to the 

 above species, which was described by Nitzsch. from a Nutcracker, Nucifraga 

 caryocatactes Linn. 



Genus Trinoton. 

 Trinoton anserinum Fabricius. 



Syst. Antl., 1805, p. 345. 



One female from a Hutchins Goose, Branta canadensi hutchinsi (Richardson), 

 taken at Bernard harbour, Northwest Territories, in June, 1915. 



Recorded by European writers (T. conspurcatum N.) from various species 

 of geese and swans. Recorded by Carriker from a Whistling Swan, Olor colum- 

 b/anus (Ord), taken in Nebraska. 



Trinoton querquedulae Linne. 



Sys. Nat., 1758, p. 612. 



One female from a Pintail, Dafila acuta (Linn.), taken at Barter island, Alaska, 

 in June, 1914. 



Recorded by various writers (T. luridum N.) from this and many other 

 species of ducks. 



Genus Ricinus. 

 Ricinus clypeatus Mjoberg. 



Arkiv. f. Zool., VI, 1910, p. 60, PL II, f. 1. 



One female from a Horned Lark, Otocoris alpestris (Linn.), taken at Bernard 

 harbour, Northwest Territories, in August, 1915. 



Described by Mjoberg from two females from the same host in the Museum of 

 Gothenburg. 



Genus Trichodectes. 



Trichodectes sp. 



Included in the records of the collection is a statement that a red fox, 

 Vulpes alascensis (Merriam), taken along the Sadlerochit river, in northern 

 Alaska, had a species of Trichodectes (?) in its fur. Unfortunately no specimens 

 were preserved. 



Genus Goniodes. 



Goniodes mammillatus Rudow. 

 Zeit, f. ges. Nat. XXXV, L870, p. 483. 



Numerous specimens, males and females, from Rock Ptarmigan, Lagopus 

 rupestris (Gmel.), taken at Bernard harbour, Northwest Territories, in June, 

 1915, and May, 1916, and at Demarcation point, Alaska, in May, 1914; and from 

 Willow Ptarmigan, Lagopus lagopus (Linn.), taken at Bernard harbour, 

 Northwest Territories, in February, 1915, and March, 1915, and a1 

 Demarcation point. Alaska, in May, 1914. 



Recorded by Kellogg from Lagopus lagopus taken at Kodiak island, Alaska. 



