54 THE NAUTILUS. 



gouldi, albofasciata and castaneus Hemphill, 1 all of northeastern 

 Utah. So far as specimens now known to us give evidence, these 

 local forms taken together constitute a species distinct from 0. 

 idahoensis (Newc.). No real intergrades between peripherica and 

 idahoensis have yet been found, whatever may exist still uncaught in 

 the territory intervening between their respective areas. 



MOLLUSCA FROM WYOMING CO., N. Y. 



BY FRANK C. BAKER. 



A few years ago the writer spent a week's vacation in Wyoming 

 County, N. Y., and incidently gathered a few shells as opportunity 

 offered. 



Banks of Genesee River, near Portage, under bark of dead tree 

 trunk : 



Zonitoides arborea ( Say). 



Gastrodonta ligera (Say). 



Pyramidula cronkhitei anthonyi Pilsbry. 



Cochlicopa lubrica (Mull.). 

 In running brook by roadside: 



Galba umbilicata (C. B. Adams). 

 Farm of John Smallwood, near Warsaw, swamp in bottom land : 



Galba palustris (Mull.). 



Physa gyrina (Say). 

 Swales in upland woods : 



Zonitoides arborea (Say). 



Pyramidula cronkhitei anthonyi Pilsbry. 



Succinea avara Say. 



Physa gyrina Say. 



Aplexa hypnorum (Linne). 



Segmentina armigera (Say). 



Galba palustris (Miill.). 



Galba obrussa (Say). 



Galba umbilicata (C. B. Adams). 



Sphecrium occidentale Prime. 



1 See Second Supplement to Terr. Moll. V, pp. 29-32. 



