. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 202 TERRESTRIAL AIR-BREATHING MOLLUSKS. Fig. 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.) Islhmia corpulenta, Morsk, Ann. N. Y. Lye, VIII. 210, Fig. 7 (Nov. 1865). Pupa corpulenta, W. G. Binney, L. k Sh., I. 238 (1869). Pupilla corpulenta, Tryon, Am. Journ. Conch., III. 309 (1868). Little Valley, Washoe C
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 202 TERRESTRIAL AIR-BREATHING MOLLUSKS. Fig. 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.) Islhmia corpulenta, Morsk, Ann. N. Y. Lye, VIII. 210, Fig. 7 (Nov. 1865). Pupa corpulenta, W. G. Binney, L. k 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. 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- Fig- 106. stome; peristome slightly reflected. Length, 2 mill.; breadth, 1 mill. - Bland, Binney, Pupa Rowellii, Newcomb, Ann. N. Y. Lye, VII. 146. - Ann. N. Y. Lye, VIII. 166, Fig. 11 (1865). — W. G. L. & 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 Californica, Rowell. Shell rimately subperforate, elongate-ovate, thin, dark horn-colored; with oblique rib-like striae ; 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 m
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