. Bulletin - United States National Museum. Science. 418 A MANUAL OF AMERICAN LAND SHELLS of Pupa fallax, except that it is only about half as large and has about two whorls less to the spire. The aperture is somewhat more bell- shaped, aud the peristome is thin and revolute instead of being thick and flattened. Animal unobserved. Pupa pellucida, Pfr. Shell subperforate, cylindrical, thin, pellucid, shining, pale yellow; Fig. 461. spire somewhat attenuated, apex obtuse; whorls 5, con- vex, the last flatter than the penultimate; aperture semi- oval, with 5 teeth ; single strong teeth on columel
. Bulletin - United States National Museum. Science. 418 A MANUAL OF AMERICAN LAND SHELLS of Pupa fallax, except that it is only about half as large and has about two whorls less to the spire. The aperture is somewhat more bell- shaped, aud the peristome is thin and revolute instead of being thick and flattened. Animal unobserved. Pupa pellucida, Pfr. Shell subperforate, cylindrical, thin, pellucid, shining, pale yellow; Fig. 461. spire somewhat attenuated, apex obtuse; whorls 5, con- vex, the last flatter than the penultimate; aperture semi- oval, with 5 teeth ; single strong teeth on columella and parietal wall of aperture, two moderate ones on right side, a fifth small basal one within the aperture; peristome sim- Pupa pellucida. pie, its right end exjoanded, its columellar end reflected. Length 2""" ; diameter scarcely 1'""'; aperture scarcely |™'" long. Pu2}apellucida, Ffeiffer, Symbolse, i, 46; Hon. Hel. Viv., ii, 360: in Roomer's Tex- as, 456.—KusTER, in Chemnitz, ed. 2, S9, pi. xii, figs. 24, 25.—W. G. Binney, Terr. Moll., iv, 147; v, 211 ; L. & Sh., i, 246 (1869). Pujja serviUs, Gould, Bost. Journ. Nat. Hist., iv, 356, pi. xvi, fig. 14.—Pfeiffer, Mod. Hel. Viv., ii, 360. Pupa EUsei, Pfeiffer, olim, Mon. Hel. Viv., iii, 532.—Kuster, in Chemnitz, ed. 2, 176, pi. xxi, figs. 13,14. Leucochilapellucida, Tryon, Amer. Journ. Conch., iv.(1868). A. West Indian species, quoted by Pfeiffer from Texas, but not else- where noticed; it is probably confined to the Texan Subregion. I have seen no specimens of it. Fig. 401 is a fac-simile of that of P. servilis. Animal unobserved. STROPHIA, Albers. Animal heliciform, blunt before, pointed behind; mantle posterior, protected by a shell; respiratory and anal orifices on the right of the mantle, under the peristome of the shell; generative orifice behind the right eye-peduncle; no caudal mucus pore or locomotive disk. Shell rimate, cylindrical or oblong-ovate, perpendicularly
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