226 ANOYLUS. 



Length 3-5, width 2-2, alt. 1-5 mill. 



Northern Maine. 



This species resembles A. tardus in its gen- 

 eral form. It is much smaller, however, and 

 has a strong, heavy shell. 



B. Species inhabiting the Pacific States. 



11. ANCYLUS NEWBERRYI, Lea. 



Plate 2, fig. 9, 10. 



Shell large, obtusely pyramidal, dark, red- 

 dish-brown, slightly compressed at the sides ; 

 apex subcentral, aperture elliptical. 



Length 13-8, width 10, alt. 5 mill. 



Klamath Lake, Pitt River, &c., California. 



This is the largest American species — a 

 giant for the genus. 



(20) 



