4d Canadian Arctic Expedition, 1913-1 S 
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. AiitL, 1805, p. 345. 
One female from a Hutchins Goose, Brantacanadensi hutchinsi (Richardson), 
taken at Bernard harbour, Northwest Territories, in June, 1915. 
Recorded by European writers (7". conspurcatum N.) from various species 
of geese and swans. Recorded by Carriker from a Whistling Swan, Olor colum- 
hianus (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 (7". luridum N.) from this and many other 
species of ducks. 
Genus Ricinus. 
Ricinus clypeatus Mjoberg. 
Arkiv. f. Zool., VI, 1910, p. 60, PI. 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. 
Zoit, f. ges. Nat. XXXV, 1870, p. 483. 
Numerous specimens, males and females, from Rock Ptarmigan^ Lagopus 
rupestrii< (Gmel.), tak(ni at Bernard iiarbour, Northwest Territories, in June, 
1915, and May, 1916, and at Dcnnarcat'ion jioiut, Alaska, in May, 1914; and from 
Willow Ptarmigan, Lagopus lagopus (Linn.), taken at Bernard harbour, 
Northwest Territories, in February, 1915, and March, 1915, and at 
Demarcation point, Alaska, in May, 1914, 
Recorded by Kellogg from Lagopus lagopus taken at Kodiak island, Alaska. 
