76 KANSAS UNIVERSITY SCIENCE BULLETIN. 



;jl. New York. 



1. [Lake Erie] Forestville, Chautauqua county. (F., '85.) 



2. Genesee river, RocheBter, Monroe county. (F., '85.) 



3. [Lake Ontario] Sodus, Wayne county. (F., '85.) 



4. Tributaries of Racket river, near Tupper's lake, St. Lawrence county. (F., 



'85.) 



5. [St. Lawrence R.], Natural Bridge, Jefferson county. (F., '85.) 



6. Fulton lakes, Hamilton and Herkimer counties. (F., '85.) 



7. Oneida creek, Peterboro, Madison county. (F., '98.) 



8. [Grass R.], Canton, St. Lawrence county. (F., '98.) 



37. Penusylvaiiia. 



1. Squaw run which empties into the Alleghany river about a mile and a half 

 above Aspinwall, Allegheny county. (Williamson, '01.) 



41. Tennessee. 



?1. Doubtfully reported by Faxon ('85). 



45. Virg-inia. 



1. [Rappahannock R.], Fredericksburg, Spottsylvania county. (F., '85.) 



2. [Trib. Kanawha R.], Wytheville, Wythe county. (F., '90.) 



Gould ('41) reports this as an inhabitant of mountain streams, 

 etc. 



Godman ('42) describes the process of removing a small peb- 

 ble which he had pushed into the small, irregular hole in the 

 bed of a small brook: "He had thrust his broad, lobster-like 

 claws under the stone, and then drawn them near to his mouth, 

 thus making a kind of shelf ; and, as he reached the edge of the 

 hole, he suddenly extended his claws and ejected the encum- 

 brance from the lower side, or down stream." 



De Kay ('44) reports it as exceedingly common in the moun- 

 tain streams of New York and the adjoining states, and as noc- 

 turnal in habits, hiding during the day under stones. 



Erichson ('46) says: " Sehr haufig in Nordamerika in 

 Bachen." 



Abbott ('73) found this the one burrowing species of the 

 region around Trenton, N. J., occurring in deep meadow ditches 

 with muddy banks, in the banks of small streams, and occa- 

 sionally in the river bank a little below the usual water-level. 



According to Faxon ('85), C. bartonii is not a preeminently 

 burrowing species like its relative, C. diogenes, but prefers the 

 cooler water of the uplands, being found more commonly in 

 clear streams and springs, while the clay bottoms and marshes 

 are inhabited by C. diogenes. He reports young specimens 



