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Show 446 LIEUT.-COL. BEDDOME ON N E W LAND-SHELLS. [June 1, gaping mouth, so that it is externally very concave; they have otherwise the same structure and the same diaphanous nucleus as in Jerdonia, and the two are only modifications of the same structure. Further on I describe three species of this section, in which the outer shelly portion is completely arched over, leaving only a small hole in the centre, so that the operculum is very convex, or papilliform, externally. CYATHOPOMA (JERDONIA) BLANFORDI, n. sp. (Plate LII. fig. 13.) Shell thin, umbilicated, pyramidal, turreted, straw-coloured, apex attenuated and subacute; whorls 6, sutures prominent, all the whorls, except the two small apical ones, prominently carinated; carinations two to three on the third whorl, three to five on the fourth, five to seven on the lowest, those about the umbilical region rather distant; umbilicus pervious; aperture circular; peristome thin, single, continuous, inconspicuously crenulate ; operculum as in the last species : length \ inch, greatest diameter A - inch. Tinnevally mountains, 4000 feet elevation. I have a closely allied species from Ceylon, Jerdonia dickoyensis (Nevill, M S . ) ; it is rather smaller, with a finer carination, and much smoother about the umbilical region ; and I think specifically distinct. CYATHOPOMA (JERDONIA) ALBUM, n. sp. (Plate LII. fig. 14.) Shell widely umbilicated, depresso-turbinate, furnished with a chalky white or whitish brown epidermis, having a minute vertical striation, which is early deciduous, or only present in patches, the shell beneath being of a peculiar shining white horny texture; spire conoidal, apex subacute; whorls 4-5, spirally lirate, the lowest with four to five, the penultimate with three ribs or lines, more prominent before the loss of the epidermis; the umbilicus prominently spirally ribbed within ; aperture circular, oblique ; peristome thin, simple, continuous, slightly angled at the inner base at the termination of the first rib round the umbilical region ; operculum externally very concave, with the margins of the outer shelly layer much raised but straight and not at all arched, multispiral, with a small transparent nucleus : length A- inch, breadth yL- inch. Yellagherry mountains, Salem district, 2500 feet elevation; Siru-mallay hills, Dindigal, 3000 feet elevation; also, I believe, in Ceylon, as I have several poor specimens of what appears to be quite the same shell, collected at Dimbola, in the central provinces. This shell is evidently allied to Cyathopoma kalamalliense (Blanford), which I have not seen; and I think that I should have considered it that species, only Mr. Blanford, who has seen my specimens, pronounced it distinct. CYATHOPOMA (JERDONIA) ANAMALLAYANUM, n. sp. (Plate LII. fig. 15.) Shell umbilicated, turbinate, with a conical apex, glabrous, with a |
