1915] 
Juday and Mtjttkowski: Alaskan Entomostraca 
31 
This Alaskan material was collected by J. M. Jessup in 1911 
along the boundary of Alaska and Canada during late June, July, 
and early August, in various lakes at various distances to the 
north of New Rampart House, Alaska. All the localities lie 
within the Arctic Circle. 
Cyclops serrulatus Fischer. 
A very few specimens of this form were noted in the material. 
Canthocamptus sp. 
Two or three immature specimens of Canthocamptus were found. 
LITERATURE 
Giesbrecht, W. and Schmeil, O. 
1898. Das Tierreich, Lieferung 6, Copepoda. Berlin. 
Gruber, A. 
1878. Ueber zwei Sueswasser-calaniden. Leipzig. 
Imhof, 0. E. 
1888. Ueber das Calanidengenus Heterocope. Zool. Ang., Bd. 11, 
pp. 447-451. 
1890. Notizen ueber die Sueswasser-Calaniden. Zool. Anz., Bd. 13, 
pp. 629-633, 654-658. 
Keilhack, L. 
1909. Die Sueswasserfauna Deutschlands: Heft 10, Phyllopoda. 
Lilljeborg, W. 
1900. Cladocera Sueciae. Upsala. 
Marsh, C. D. 
1907. A Revision of the North American Species of Diaptomus. Trans. 
Wis. Acad. Sci., XV, part 2, pp. 381-516, pis. xvii-xxviii. 
1910. A Revision of the North American Species of Cyclops. Trans. 
Wis. Acad. Sci., XVI, part 2, pp. 1067-1135, pis. lxxii-lxxxi. 
Pearse, A. S. 
1905. Contributions to the Copepod Fauna of Nebraska and Other 
States. Univ. of Nebr. Studies, no. 65. 
Sars, G. O. 
1903. An Account of the Crustacea of Norway. Vol. IV, Copepoda. 
Bergen. 
Schmeil, O. 
1892-1896. Deutschlands freilebende Suesswasser-Copepoden. Bib- 
liotheca Zoologica. 
Van Douwe, C. 
1909. Die Snesswasserfauna Deutschlands. Heft 11, Copepoda. 
Zoological Laboratory, 
University of Wisconsin, 
January 13, 1915. 
