246 



LAND AND FRESH-WATER SHELLS OF N. A. [PART I. 



Cat. No. No. of Sp. 



Locality. 



8413 

 8706 



Milwaukee, Wis. 



From ■whom received. 



I. A. Liiphain. 

 W. G. Biuuey. 



Cab. series. 



Pupa pelllicida, Pfr. — Shell siibperforate, cylindrical, thin, 

 pellucid, shining,^ pale yellow, spire somewhat attenuated, apex obtuse; 

 whirls five, convex, the last flatter than the penultimate ; aperture semi- 

 oval, with five teeth ; single strong teeth on 

 Fig. 429. columella and parietal wall of aperture, two 



moderate ones on right side, a fifth small 

 basal one within the aperture ; peristome 

 simple, its right end expanded, its columel- 

 lar end reflected. Length 2, diam. scarcely 

 1 mill. ; aperture scarcely § mill. long. 



Pupa peUucida, Pfeiffer, Symbolse, I, 46 

 Pupa pellucida. Mon. Ilel. Viv. II, 360; in Romek's 



Texas, 456. — Kuster, in Chemnitz, ed. 

 2, 89, pi. xii, f. 24, 25.— W. G. Binxey, Terr. Moll. IV, 147. 

 Pupa servilis, Gould, Bost. Journ. Nat. Hist. IV, 356, pi. xvi, f. 14. — 



Pfeiffek, Mon. Hel. Viv. II, 360. 

 Pupa riisei, Pfeiffer, olim, Mon. Hel. Viv. Ill, 532. — Kijster, iu Chem- 

 nitz, ed. 2, 176, pi. xxi, f. 13, 14. 



A Cuban species quoted by Pfeiffer from Texas. I have seen 

 no specimens of it. Fig. 429 is' a fac-siraile of that of P. servilis. 



Subgenus STROPHIA, Albers. 



Shell rimate, cylindrical or oblong-ovate, perpendicularly cos- 

 tulate or ribbed, solid, white, often variegated with red ; whirls 

 9-12, the last narrowed towards the base, often ascending; 

 aperture semioval, usually bluish-brown within ; columella with 

 a dentiform fold, parietal wall furnished with an internal 

 denticle ; peristome thickened, reflexed, its margins connected 

 by a somewhat heavy callus. 



Animal (of P. incana) whitish, brownish, smoky, or nearly 

 black, darker on the back and upper part of head. Body finely 

 granulated, the granules arranged in regular lines longitudinally, 

 making the surface look as if minutely and longitufJinally fur- 

 rowed. Eye-peduncles rather short, slender, bulbous at the 

 extremities, tentacles very short. 



