470 A MANUAL OF AMERICAN LAND SHELLS. 



bearing a short, stout cutting point, reaching the lower edge of the base 

 of attachment ; side cusps obsolete, but bearing well-developed, short 

 side cutting points. Laterals like centrals, but asymmetrical by the 

 suppression of the inner, lower, lateral angle of the base of attachment 

 and the iuner side cutting point. Transition teeth from the laterals to 

 the marginals with a more developed reflection, a shorter inner cusp, 

 bearing v, greatly developed bifid cutting point. Marginals low, wide, 

 the reflection equaling the base of attachment, and bearing one inner, 

 long, oblique, acutely bifid cutting point, and one shorter, outer, some- 

 times bifid, side cutting point. 



The only other Pomatia whose dentition has been figured is pomatia^ 

 which shows the same type of teeth (Goldfuss, I. c, Plate IV, Fig. 6), and 

 Sleboldtiana, Pfr. (see Proc. Am. Nat. Soc. Phila., 1875, Plate XXI, Fig. 

 8), which difi'ers in detail. The jaw of these and of numerous European 

 species is known, and of the same type as in aspersa. 



Pomatia aspersa, Mui.ler. 



Shell imperforate, subglobose, rather thin, the surface rather coarsely 

 Fig. 514. and irregularly striate and finely wrinkled and 



indented J the ground -color is yellowish or gray- 

 ish, with chestnut colored bands of various 

 widtli, across which are narrow, undulating 

 flammules of yellowish ; the spire is rather ob- 

 tuse, composed of 4 or 5 moderately convex 

 whorls, the principal one being very large and 

 ventricose ; the aperture is large, a little oblique, 

 p.aspersa. rouuded-luuate ; the peristome white, sharp, 



turned slightly outward, and in the region of the umbilicus turning 

 over the columella in a broad, appressed callus, which is continued to 

 the upper junction of the peristome. Greatest diameter, 32"'™; height, 

 22""". 



Helix aspersa, Muller, Verm., ii, 59.— Pfeiffer, Mon. Hel. Viv., i, 24L— Dk Kay, N. 

 Y., Moll., 47 (1843).— BiNNEY, Terr. Moll., ii, 117, not in plate— W. G. Bix> 

 NEY, Terr. Moll., iv, 51, pi. IxxNii, fig. 4 ; L. & Fr.-W. Sh., i, 183 (1869). 



Pomatia aspersa, Tryon, Am. Journ. Couch., ii, 322, 16 (18(6). — W. G. Bi.vney, Terr, 

 Moll., V, 380. 



In gardens in Charleston, S. C, and vicinity, where it has existed 

 for fifty years; I found it plentifully in Saint Michael's church yard in 

 1875 ; also has been found at Kew Orleans and Baton Rouge ; Portland, 

 Me.; Nova Scotia; Santa Barbara, Cal.; Hayti; Saint lago. Chili, &c^ 



