274 KANSAS UNIVERSITY QUARTERLY. 



Hay, W. p., 'g6. The Crawfishes of the State of Indiana. 

 Twentieth Ann. Rcpt. Ind. Geol. Surv. , pp. 475-507. 



Hay. W. P., '99. Descriplion of Two New Species of Crayfish. 

 Proc. U. S. Nat. Mus., Vol. XXH, pp. 121-123. 



Hay, W. P., 'gg, b. The Astacidae of North America. Amer. 

 Nat., (Synopsis of North American Invertebrates, VI) Vol.. 

 XXXIII, pp. 957-966. 



Herrick, C. L. , '81. Papers on the Crustacea of the Fresh 

 Waters of Minnesota. Geol. and Nat. Hist. Surv. of Minn., Vol. 

 X, pp. 252-4. 



Street, Thomas H., '77. Description of Cambarus Cousei, a 

 new Species of Crawfish from Dakota. Bull. U. S. Geolog. and 

 Geograph. , Surv. Terr., Vol. Ill, pp. 803-4. 



Tarr, Ralph S., '84. Habits of Burrowing Crayfish in the United 

 States. Nature, Vol. XXX, p. 127. 



