GEOGRAPHICAL DISTRIBUTION. 109 



C. Blandingii, var. acuta, has been received from Wheatland, Knox Co., in the 



southeastern pari of the State. 

 C. pellucidus inhabits Wyandotte Cave, Crawford Co., and caves in Harrison Co. 



Both of these counties are on the southern border of the State. 

 C. Bartonii has been collected at New Albany, on the Ohio River, and at Indian- 

 apolis. 

 C. Diogenes is recorded from Long Lake, Keudallville, Noble Co.; Mechanicsburg, 



Henry Co. ; and Knox Co. 

 C. argillicola is found at New Albany. 

 C. immunis comes from White River; Fall Creek, Indianapolis; and Long Lake, 



Keudallville. 

 C. Sloanii, New Albany. 

 C. propinquus seems to be a common and widely distributed species. Known 



localities: Elkhart River, Rome City, Noble Co.; Delphi; Indianapolis; White 



River; SwitzCity; Michigan City; Turman Creek, Sullivan Co. ; Clear Creek, 



Bloomingtou. 

 ('. virilis. .Michigan City ; Long Lake, Keudallville; Elkhart River, Rome City. 



All of these places are in the northern part of the State. ■ 

 C. rustic us. Ohio River, Madison ; White River; Indianapolis. 

 25. Illinois. — Eight species : G. Blandingii, var. acuta, ( '. gracilis, I '. Bartonii, var. robusta, 



C. Diogenes, C. immunis, ( '. propinquus, C. virilis, and C. rusticus. 

 C. Blandingii, var. acuta. This is a very common species in Illinois. It is 



recorded from Athens, Decatur, Pekin, Normal, Oquawka, Peoria, Lawn Ridge, 



and Evauston. 

 C. gracilis. Normal, Lawn Ridge, Athens. " Very common along watercourses in 



early spring." Forbes. 

 ft Bartonii, var. robusta. One locality in the State, viz. Decatur. 

 ft Diogenes. Lawn Ridge, Evauston, Belleville, Decatur, Chicago, .and Abingdon. 



Very common. 

 C. immunis. Aux Plains [?], Belleville, Lawn Ridge, Normal, and Oquawka. 



" The commonest species of Central Illinois. It is especially frequent in the 



muddy ponds of the prairies." Forbes. 

 ft propinquus. Freeport; Ogle Co.; Geneva; Pekin; Normal; Decatur; Aux 



Plains River, 

 ft virilis. Quincy; Lawn Ridge; Decatur; Normal; Pekin; Cairo; Geneva; 



Stillman's Creek, Marion. 

 C. rusticus. Quincy (C placidus Hagen); Normal. 

 ft troglodytes has been cited by Hagen as an Illinois species on the authority of a 



single specimen in the Museum of Comparative Zoology (No. 1H7) marked 



"Lawn Ridge, 111., 0. Ordway." 1 am inclined to think the label erroneous. 

 2G. Kentucky. — Nine species : C. pellucidus, C. Bartonii, ft Diogenesl C. duiius, C. cor- 



nutus, C. Sloanii, C. 'propinquus, var. Sanbornii, C. rusticus, and C. Putnami. 

 C. pellucidus. Mammoth Cave and other caves in Edmonson Co 

 ('. Bartonii. Cumberland Gap, Josh Bell Co.; Smoky Creek, Carter Co.; Ken- 

 tucky River, Little Hickman, Jessamine Co.; Bear Creek, Grayson's Springs, 



Grayson Co.; Mammotb Cave, Edmonson Co. 

 C. il ula' us. ( lumberland Gap. 

 C. cornutus. Green River near Mammoth Cave. 



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