1913] 
Graenicher , Wisconsin Crawfishes. 
121 
to occur in any suitable habitat within our state, since it has been 
found in all of the neighboring states, and extends its range north¬ 
ward as far as Lake Winnipeg. 
The following localities have been given heretofore: Apple- 
ton, Outagamie Co. (Fox River) ; Ironton, Sauk Co. (Baraboo 
River) ; Sauk City, Sauk Co. (Wisconsin River) ; Milwaukee Co.; 
Green Co. (Sugar River) ; Rock Co. (Rock River) ; Jefferson Co. 
(Lake Koshkonong). 
Along our western border it has been collected at the follow¬ 
ing points: 
St. Croix river— 
Mouth of the Yellow river, Burnett Co., Aug. 2, 1909. 
Randall in Burnett Co., Aug. 6, 1909. 
North Hudson in St. Croix Co., July 8, 1910. 
Mississippi river— 
Prescott, Pierce Co., July 19-25, 1910. 
Maiden Rock, Pierce Co. Specimens from the mouth of the 
Rush river and from Lake Pepin, Aug. 1, and 2, 1910. 
Fountain City, Buffalo Co., Aug. 15, 1910. 
Wyalusing, Grant Co., July 21, 1911. 
From the eastern part of the state we have quite a number or 
records. In Milwaukee County it has been taken from the Milwau¬ 
kee, Menomonee and Kinnickinnick rivers and some of their 
tributaries, as also from Oak Creek at South Milwaukee. The 
earliest date of capture is March 20, 1910 (Honey Creek, a trib¬ 
utary of the Menomonee river, joining the latter near Wauwa¬ 
tosa), the latest date is Nov. 11, 1911, when a large male was 
found on the beach of Lake Michigan near Lake Park, Milwaukee. 
Additional localities in eastern Wisconsin are as follows: 
Newport, Door Co., August 6, 1910; specimens from Lake Michi¬ 
gan. Suamico; specimens from Green Bay bought in the Mil¬ 
waukee market Sept. 30, 1912. Corliss, Racine Co., May 15, 
1912; taken together with C. blandingi acutus and C. diogenes 
from a creek in the prairie, about a mile east of Corliss. 
From the interior of the state specimens are on hand from 
Okauchee Lake in Waukesha Co. (April 10, 1910), and Golden 
Lake in Waukesha County (Oct. 16, 1910). 
C. (Faxonius) immunis Hagen. In Michigan it occurs in the 
