. Mollusca ... expanded and briefly reflexed, partly covering theumbilicus. Major diam. 72, min. 62, axis 38 mm.; aperture 38 broad,16 high. Hab. Anaimalai teak-forest, 2000-3000 feet above the sea, westof the main range of hills. A. basileus is the largest of Indian snails. It has not beenfound north of the great gap in the Sahyadri range at shell is very similar to that of the Siamese Hemiplecta distincta,Pfr., but the animal, for a specimen of which I am indebted toMr. Thurston, proves on examination to be a true genitalia resemble those of A. solata. The radula i
. Mollusca ... expanded and briefly reflexed, partly covering theumbilicus. Major diam. 72, min. 62, axis 38 mm.; aperture 38 broad,16 high. Hab. Anaimalai teak-forest, 2000-3000 feet above the sea, westof the main range of hills. A. basileus is the largest of Indian snails. It has not beenfound north of the great gap in the Sahyadri range at shell is very similar to that of the Siamese Hemiplecta distincta,Pfr., but the animal, for a specimen of which I am indebted toMr. Thurston, proves on examination to be a true genitalia resemble those of A. solata. The radula is verybroad and the formula for the teeth 56 . 2 . 28 . 1 . 28 . 2 . 56(86 .1 . 86), [which is almost identical with that of A. centre tooth is tricuspid, the admedian teeth are elongatewith a cusp on the outer side; the laterals are aculeate, slightlycurved in form, they become shorter and more slender, andthe outermost are blunt and minute, resembling those of Eavanapolitissima]. 42 ZONITIDjE, .Q-c. [Fig. 23.—Ariophanta basileus. A. Mantle-margin (w), showing dorsal lobes, s, slit between tbe anterior and posterior lobes ; /, foot, sole of. B. Animal, shell removed, viewed from left side, showing (r) renal organ and position of heart Qi) and amatorial organ within the visceral sac; alsothe pulmonary vein {pv). C. Generative organs, separated out. x23. D. Jaw and teeth of the radula at various points in the row. For explanation of letters in italics and numbers see figs. 2, 3, 4, and 16.] 71. Ariophanta beddomii, Blf. (Hemiplecta) A. M. N. H. (4) xiv1874, p. 406; T. (Helix) C. I. 1876, pi. 159, fig. 10. Similar to A. basileus, of which the present species may be avariety, but smaller, thinner, and more depressed. The sculptureand coloration are identical with those of some forms of the laro-ershell. Major diam. 51, min. 41, axis 24 mm.; aperture 2G broad bv21 high. ■^ Hab. Travancore Hills, west side, south of Peermede. AEIOPHANTA. 43 72. Ariophanta (Xestin
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