1913] 
Graenicher, Wisconsin Crawfishes. 
123 
In Michigan it occurs, according to Pearse, throughout three- 
fourths of the southern peninsula, and in Minnesota it has been 
found in the Minnesota River at Fort Snelling in Hennepin 
County. Previous records from Wisconsin are as follows: Green 
Co. (tributaries of the Pecatonica river) ; Racine Co.; Appleton in 
Outagamie Co. (tributaries of the Fox river). 
On March 20th, 1910, two females with freshly hatched young 
were found in a temporary pond in Johnson’s woods, Town of 
Wauwatosa, together with females of C. immunis carrying eggs 
as reported above. (See C. immunis). Females have been taken 
on various dates in March and April from ponds that dry up later 
in the season situated in Johnson’s woods and Mitchell’s woods 
(southwest of Milwaukee). 
On May 1st, 1910, four young of this species were found in a 
small ditch near the tracks of the electric car line at Sunny Slope 
in Waukesha Co. 
Females carrying eggs were come across as late as May 15th 
in the creek running through the prairie east of Corliss in Racine 
Co. and a male was captured on the same occasion. 
The following additional records are given: One male March 
21, 1910, from the Menomonee river near Wauwatosa. A male 
specimen from Green Bay (Suamico) bought in the Milwaukee 
market Sept. 30, 1912. Prescott, Pierce Co., July 19, 1910, one 
male from a burrow. Maiden Rock, Pierce Co., Aug. 3, 1910, 
two males in burrows along the shore of Lake Pepin. Fountain 
City, Buffalo Co., Aug. 15, 1910. Genoa, Vernon County, July 
9, 1911. Wyalusing, Grant Co., July 21, 1911. 
The five last named localities are situated along the Mississippi 
river; Prescott, the most northern of these, lies about 25 miles 
below Fort Snelling in Minnesota, from where this species has 
been reported. 
Public Museum, Milwaukee, Wis., Dec. 4, 1912. 
