GEOGRAPHICAL DISTRIBUTION. 171 



C. propinquus. Davenport; Ottumwa. 



C. immunis. West Liberty. 



0. virilis. Davenport; Burlington; Fort Dodge ; Spring Vale ; Des Moines River ; 



Bedford. 

 C. rusticus. Lizard Creek, Port Dodge. 

 The State lias been little explored. All of the above-named localities are on the 



eastern border of the State, except Fort Dodge and Spring Vale, which are in 



the central part. 



32. Missouri. — Seven species: G. Blandingii, var. acuta, G. Diogenes, medius, immunis, 



Harrisonii, virilis, and rusticus. Possibly C. Bartonii in the Osage River. 



(See page 61.) 

 C. Blandingii, var. acuta, occurs at St. Louis. 

 C. Diogenes. Carroll Co. and St. Louis. 

 C. medius. Irondale, Washington Co. 

 C. immunis. St. Louis. 

 C. Harrisonii. Irondale, Washington Co. 

 ft virilis. St. Louis ; Osage River ; Irondale. 

 ft rusticus. Osage River. 



33. Arkansas. — Four species : C. Diogenes, virilis, rusticus, and one undetermined spe- 



cies belonging to the C. Blandingii group. 

 ft Diogenes. Locality unknown. 

 C. virilis. White River, Eureka Springs. 

 ft rusticus. White River, Eureka Springs. 

 Sp. indet. Salina River, Arkadelphia. 



34. Indian Territory. — None. 



35. Kansas. — Four species : C. simulans, Diogenes, immunis, and virilis. 



C. simulans. Fort Hays, 

 ft Diogenes. Leavenworth, 

 ft immunis. Leavenworth ; Ellis. 



ft virilis. Leavenworth ; Manhattan ; Republican River northwest of Fort Riley ; 

 Ellis. 



36. Nebraska. — One species, ft virilis, from Omaha, on the eastern border of the 



State. 



37. Dakota Territory. — Three species : Cambarus Nebrascensis, ft virilis, and Astacus 



Gambelii. 

 C. Nebrascensis from Fort Pierre, at the confluence of the Bad and Missouri Rivers 



(Girard). 

 C. virilis from the Red River of the North, near Pembina, and from the Souris or 



Mouse River. 

 A. Gambelii from the mouth of the Yellowstone River, on the boundary between 



the Territories of Dakota and Montana (the easternmost locality for the genus 



Astacus). 



38. MONTANA TERRITORY. — One species, Astacus Gambelii, from the mouth of the 



Yellowstone River. 



39. WYOMING TERRITORY. — Three species : C. Diogenes, immunis, and virilis. Perhaps 



also Astacus Gambelii. (See page 137.) 

 C. Diogenes has been found at Cheyenne. 

 C. immunis and ft virilis at Laramie City. 



