HARRIS : CRAYFISHES GENUS CAMBARUS. 71 



Cambarus angustatus LeC. 



9. Georgia. 



1. Le Conte ('56) aays: "Habitat in Georgia inferiore, in aquae purse rivulos 

 qui inter coUeculos arenosus (sand-hills) currunt." 



Cambarus argillicola Fax. 



Canada. 



1. [Lake Ontario], Toronto, P. O. (F., '85.) 



11. Illinois. 



1. Lowlands bordering on Wabash river, York, Clark county. (F., '90.) 



12. Indiana. 



1. [White R.], Irvington, Marion county. (Hay, '96.) 



2. [White R.], Bloomington, Monroe county. (Hay, '96.) 



3. [Trib. White R.], Wheatland, Knox county. (Hay, '96.) 



4. [Trib. Ohio R.], New Albany [Floyd county]. (Hay, '96.) 



17. Louisiana. 



?1. [Mississippi R.], New Orleans [Orleans county]. (F., '85.) 



21. Michigan. 



1. [Trib. Lake St. Clair], Detroit [Wayne county]. (F., '85.) 



2. [Trib. of Shiawassee R.], East Saginaw [Saginaw county]. (F., '85.) 



2.*5. Mississippi. 



1. Bay St. Louis, Hancock county. (F., '98.) 



32. North Carolina. 



?1. [Neuse R.], Kinston, Lenoir county. (F., '85.) 



34. Ohio. 



1. Kelley's island, Lake Erie. (F., '90.) 



2. [Trib. Lake Erie], Oberlin [Lorain county]. (Hay, '96 ) 



42. Texas. 



1. [Guadalupe R.], Victoria [Victoria county]. (F., '98.) 



2. [Brazos R.], Brazoria [Brazoria county]. (F., '98.) 



Faxon ('84 and '85) says: "The types of this species were 

 dug out of burrows in solid blue clay in Detroit, Mich., by Mr. 

 H. G. Hubbard, in August, 1873. The burrows were three to 

 five feet deep. At the bottom of each burrow was a pocket in 

 a layer of loose gravel and clay, holding water. Just above the 

 water-line an enlargement in the burrow formed a shelf on 

 which the animal rested." 



Faxon ('90), in reporting this species from the lowlands 

 bordering on the Wabash river, Clark county, Illinois, says : 

 "According to the manuscript label accompanying these speci- 



