Baker—Molluscan Fauna of Tomahawk Lake , Wisconsin. 243 
Family IIelicidae. 
Genus Polygyra (Say) Pilsbry. 
53. Polygyra albolabris (Say). 
Station I. Three dead specimens of this large land 
snail were found on the hillside above Sanders’ Resort. 
It is apparently rare in this area. 
REFERENCES. 
Baker, Frank C. 
1909. Note on Planorbis Binneyi Tyron. Nautilus, 
XXII, p. 41. 
1910. A new variety of Lymnsea Stagnalis. Nautilus, 
XXIII, p. 112. 
1910, a. Description of a New Lymnsea. Nautilus, 
XXIV, p. 58. 
Chadwick, George IT. 
1902. Notes on Wisconsin Mollusca. Bull. Wis. Nat. 
Hist. Soc., IV, pp. 67-99. 
Dali, William H. 
1905. Land and Fresh Water Mollusks. Harriman 
Alaska Expedition, XIII. 
Marsh, William A. 
1897. New American Unionidse. Nautilus, X, p. 103. 
Ruthven, A. G. 
1906. An Ecological Survey in the Porcupine Mountains 
and Isle Royale, Michigan. Rep. State Board 
Geol. Surv. Mich., 1905, pp. 17-55. 
Walker, Bryant. 
1900. The Genuine Planorbis Corpulentus Say. Nau¬ 
tilus, XIII, pp. 133-138. 
1906. An Illustrated Catalogue of the Mollusca of Michi¬ 
gan. Part I, Terrestrial Pulmonata. Rep. 
State Board Geol. Surv., 1905, pp. 428-529. 
1909. Annotated List of the Mollusca of Isle Royale, 
Michigan. An Rep. Geol. Surv. Mich., 1908, 
pp. 281-298. 
