800 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
water. Specimens were obtained at many points between Farmington 
Canyon, Davis County, and Spanish Fork Canyon, Utah County, south 
of which place none was found. 
The author also has in his collection a number of specimens of Heni- 
cops taken by his brother, Prof. W. H. Chamberlin, at the head of 
Chalk Creek, in the Uintah Mountains, which prove to belong to the 
same species as those from the Wahsatch. It is, consequently, very 
probable that the range of this species is carried eastward by the 
Uintahs into the Rockies. 
