Dall — Bulimulus from the Galapagos Islands and Pent. 11 



throughout the spire. Measurements of the largest, medium and smallest 

 specimens in millimeters are as follows, the great majority being of 

 medium size: 



Collected on trees and shrubs near Paseje, Apurimac valley, Peru, by 

 Prof. Hiram Bingham of the Peruvian expedition of the National Geo- 

 graphic Society. Cat. U. S. Nat. Mus. No. 251,835. 



The described species nearest to this is the B. (Scutalus) corseformis 

 Pilsbry, from the Maranon valley on the east slope of the Andes. The 

 latter is much larger, with a relatively smaller umbilical funnel and a 

 different colored throat. 



