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Show 1870.] MR. J. BRAZIER ON NEW LAND-SHELLS, 661 licus deep ; aperture roundly lunate; peristome thin, acute, margins nearly approximating, columellar margin not reflected. Diam. maj. 0*13, min. 0*11, alt. 0*08 une. Hab. Knocklofty; also the Old Mill, Hobart Town, Tasmania, under logs (Coll. Brazier). This species comes near to H. tasmanice, Cox, from Mount Wellington- a rare shell to obtain; whereas H. neglecta is a very common species in the localities I have given. 6. HELIX (CHAROPA) AMMONITOIDES, n. s. Shell umbilicated, flatly discoid, not shining, finely and prominently irregularly ribbed, the interstices with very fine striae, white beneath a thin brownish epidermis; spire flat, suture slightly impressed ; whorls 3|, very regularly increasing, last rounded above and below, base convex, with striae the same as on upper surface; umbilicus large, with the bottom flat, not very deep; aperture oblique, roundly lunate ; peristome simple, the thin epidermis covering it, margins approximating. Diam. maj. 0*11, min. 0*10, alt. 0*5 une. Hab. Mount Nelson, Tasmania, under stones in moist places (Coll. Brazier). This little species has the appearance of an Ammonite in form ; but it must not be confounded with Helix ammonitoides of Reeve, which is only a synonym of Helix omicron, Pfr.. 7. HELIX (?CHAROPA) DISPAR, n. s. Shell umbilicated, depressedly convex, arcuately, coarsely, and sharply ribbed, interstices with very fine radiating striae, bright, horny; spire conoidly obtuse, suture depressed; whorls 5 to 5|, convex, last rounded, not descending, base convex, with radiating striae descending into the deep umbilicus; interior of the aperture with a little oblong white prominent callous tooth nearly on the base ; aperture vertical, semilunar ; peristome simple, acute, margins joined by a thin callus (in some specimens prominent), basal margin not reflected. Diam. maj. 0*13, min. 0*11, alt. 0*11 une. Hab. Mount Wellington, Tasmania, under leaves (Coll. Brazier). This species is the only one I know of in Tasmania with the small tooth in the interior of the aperture. We have H. biscutata, said to come from the same locality, but none so small as the present little species, which is somewhat like a small species that I have from Norfolk Island. 8. HELIX (HYALINA) NELSONENSIS, n. s. Shell umbilicated, depressed, very thin, shining, pellucid, obliquely and finely striated; spire slightly elevated, obtuse ; whorls 3\, last increasing, convex, slightly depressed above at the mouth, base convex, faintly marked with indistinct striae of a reddish horn-colour; umbilicus moderately large; aperture nearly diagonal, slightly |
