202 



TERRESTRIAL AIR-BREATHING MOLLUSKS. 



Fig. 105. 



Pupa corpulenta, 

 enlarged. 



base ; aperture large, subcircular, with 4 obtuse 

 teeth, 1 on the parietal margin, 1 on the columellar 

 margin, and 2 on the labrum ; peristome slightly 

 thickened and reflected. Length, .10 inch; breadth, 

 .06 inch. (Morse.) 



Isthmia corpulenta, MORSE, Ann. N. Y. Lye., VIII. 



210, Fig. 7 (Nov. 1865). 

 Pupa corpulenta, W. G. BINNEY, L. & Fr.-W. Sh., I. 



238 (1869). 

 Pupilla corpulenta, TRYON, Am. Journ. Conch., III. 



309 (1868). 



Little Valley, Washoe Co., Nevada ; on east slope 

 of Sierra Nevada, 6,500 feet above the sea ; Colora- 

 do; thus far not noticed outside the Central Province. 



Animal unobserved. 



Fig. 106. 



Pupa Rowelli, NEWCOMB. 



Shell perforate, oblong-ovate, dark horn-colored, shining, translucent, finely 

 striated ; apex obtuse ; whorls 5, convex ; aperture truncately ovate, armed 

 with 4 teeth, 1 prominent and plicate on the columella, 3 deeply 

 seated within the aperture, 1 on the columella, 2 within the peri- 

 stome ; peristome slightly reflected. Length, 2 mill. ; breadth, 

 1 mill. 



Pupa Rowellii, NEWCOMB, Ann. N. Y. Lye., VII. 146. BL'AND, 

 Ann. N. Y. Lye., VIII. 166, Fig. 11 (1865). W. G. BINNEY, 

 L. & Fr.-W. Sh., I. 238, Fig. 412 (1869). 



Pupilla Rowellii, TRYON, Amer. Journ. Conch., III. 304 (1868). 



A species of the California Region ; California, near Oakland, 

 Monterey, San Bernardino, El Dorado County. 

 Animal unobserved. 



Pupa 



Rowelli, 

 enlarged. 



Fig. 107. 



Pupa Californica, ROWELL. 



Shell rimately subperforate, elongate-ovate, thin, dark horn-colored ; with 

 oblique rib-like strife ; apex obtuse ; deep suture ; with 5 to 6 convex whorls, 

 the last a little compressed at the aperture ; aperture oblique, sub- 

 orbicular, armed with 4 white denticles ; one lamelliform, strongly 

 developed, slightly twisted, on the parietal wall, one on the colu- 

 mella, and two deeply seated within or near the base of the aper- 

 ture ; peristome slightly expanded, columellar margin somewhat 

 reflected. Longitude, 2^ mill. ; diameter, 1 mill.. 



Pupa Californica, NEWCOMB, Ann. N. Y. Lye., VII. 287. 

 BLAND, Ann. N. Y. Lye., VIII. 166, Fig. 12(1865). W. G. 

 BINNEY, L. & Fr.-W. Sh., I. 239, Fig. 413 (1869). 



