. Bulletin - United States National Museum. Science. EASTERX PROVINCE—SOUTHERN REGION SPECIES. 387 recently been called THodopsis Henrietta by Mazyck, Proc. Phila. Acad. Kat. Sci., 1877, 297. I hardly cousider it distinct. His descrip- tion and a figure of his type are given here: Shell rimately umbilicated, depressed, globose, rather solid, with numerous regular, delicate striae, dark-brownish horn-color; fig. 421. s[)ire obtuse; whorls about five and a half, slightly con- vex ; suture deeply impressed; l>eneath convex, smoother than above; umbilicus very deep, reaching the aj^ex, but only
. Bulletin - United States National Museum. Science. EASTERX PROVINCE—SOUTHERN REGION SPECIES. 387 recently been called THodopsis Henrietta by Mazyck, Proc. Phila. Acad. Kat. Sci., 1877, 297. I hardly cousider it distinct. His descrip- tion and a figure of his type are given here: Shell rimately umbilicated, depressed, globose, rather solid, with numerous regular, delicate striae, dark-brownish horn-color; fig. 421. s[)ire obtuse; whorls about five and a half, slightly con- vex ; suture deeply impressed; l>eneath convex, smoother than above; umbilicus very deep, reaching the aj^ex, but only exhibiting the last three whorls, grooved within; body-whorl gently ascending just behind the aperture and then suddenly and shortly deflected, very much con- stricted behind the peristome, with two deep exterior pits, having the space between them elevated into a pronii- t. Henriettce. nent ridge; aperture subtriangular, peristome much thickened within and very slightly reflexed, very tortuous, yellowish-white, furnished with a small denticle near its upper termination and an erect, lamelli- form tooth, which is equal in length to about one fifth the diameter of the base of the shell, extending from the lower end of the uppermost pit almost to the inner edge of the body-whorl; low down in the mouth of the shell there is, between this tooth and the denticle, a large, white, tongue-shaped, concave tooth, and very near this, but rather lower down in the mouth of the shell and on the base of the body-whorl, there is an oblique, stout, white tooth, which is sometimes slightly cleft on the edge; the parietal wall, which is covered with a semi trans- parent callus, bears a very strong, arcuated, entering, white tooth, whose outer margins form almost a right angle. Diam. maj., ^; min., -j^; alt., J inch. Eastern Texas (Mr. Jacob Boll). This species more nearly resembles Helix vultuosa, Gld., than any other ]S^orth American species, but differs from that shell in the shape and size
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