HARRIS : DISTRIBUTION OF KANSAS CRAYFISHES. 11 



OSAGE RIVER, C. virilis, (10) ; C. rusticus, (1). 

 ARKANSAS RIVER, C. virilis, (4?). 



* Tributaries, G. nais, (1) ; C. gracilis, (1). 

 Tributaries, ('. virilis, (4 ?) ; C. gallinas, (3). 



*Coal creek, G. nais, (2). 



* Labette creek, C. virilis, (21 ). 



Chikaskia River. 



Tributary, C. virilis, (9) ; G. gallinas, (2), (4). 



Little Arkansas River. 



Tributary, C. gallinas, ( 1 ) . 

 Medicine Lodge River. 



Tributary, C. simulans, (1). 



Laboratory of Zoology and Histology, 

 University of Kansas. 



