. Mollusca ... on the Ganges), Manbhum, Cuttack,Madras, and other places in the Carnatic. Except in the heightof the spire, there is but little variation. AEIOPFANTA. 39 Ariophanta bistrialis, Bech (Nauina), Ind. Mol. i, p. 2 (1837,descr.); Pfr. in Chemn. ed. 2,1846, Helix, no. 61, pi. 11, figs. 10,11; id. (Helix) Mon. Hel. i, 1847, p. 71 ; id. t. c. vii, 1876,p. 122 ; H. 8; T. (Helix) C. I. 1876, pi. 29, fig. 1 ; Qodwin-Austen (Nilgiria), Mol. Ind. ii, 1898, p. 80, pi. 81, fig. 4 (genitalia),pi. 82, fig. 5 (radula). Helix ceylanica, Pfr. Zeitschr. Mai. 1850, p. 67; id. Man. , 1853, p.
. Mollusca ... on the Ganges), Manbhum, Cuttack,Madras, and other places in the Carnatic. Except in the heightof the spire, there is but little variation. AEIOPFANTA. 39 Ariophanta bistrialis, Bech (Nauina), Ind. Mol. i, p. 2 (1837,descr.); Pfr. in Chemn. ed. 2,1846, Helix, no. 61, pi. 11, figs. 10,11; id. (Helix) Mon. Hel. i, 1847, p. 71 ; id. t. c. vii, 1876,p. 122 ; H. 8; T. (Helix) C. I. 1876, pi. 29, fig. 1 ; Qodwin-Austen (Nilgiria), Mol. Ind. ii, 1898, p. 80, pi. 81, fig. 4 (genitalia),pi. 82, fig. 5 (radula). Helix ceylanica, Pfr. Zeitschr. Mai. 1850, p. 67; id. Man. , 1853, p. 71; id. t. c. vii, 1876, p. 122; H. Sr T. C. I. 1876,pi. 29, fig. 3; Godwin-Austen (Nilgiria), Mol. Ind. ii, 1898, p. 126[(description of animal, genitalia, and radula)]. Helix taprobanensis, Dohrn, Mai. Bl. vii, 1859, p. 206 ; Pfr. V, 1868, p. 116; H. & T. C. 1. 1876, pi. 29, fig. 2. ? Helix cyix, Bs. A. M. N. H. (3) v, 1860, p. 382; Pfr. V, 1868, p. 236 ; a.^T. C. I. 1876, pi. 29, fig. Fig. 22.—Ariophanta bistrialis. Shell perforate, subglobosely depressed, thin, finely striated,decussated above with impressed spiral lines, polished below, palehorny, encircled by two rufous lines (one or both sometimeswanting), with a whitish band between them, the upper linecontinued inside the suture on the upper whorls ; spire low,convex; whorls 4J, nearly flat, rapidly increasing, the last notdescending, convex beneath; aperture large, oblique, Innatelyovate; peristome thin, with the columellar margin slightly reflected. Major diam. 30, min. 25, axis 17 mm.; aperture 16 broad and16 high. H<A. Madras Presidency and Ceylon. I found this shell asfar north as the Gadavari at Dumagudiam, but I have seenno specimens from the Malabar coastland. Large specimensup to 40 mm. in size have been obtained on the Shevroy Hills byMr. J. E. Henderson. The usual South-Indian form (bistrialis) is pale-coloured andsmooth vsdth two rufous lines; the common Ceylon form is darkerin col
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