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Show 1873.] DR. J. COX ON NEW LAND AND MARINE SHELLS. 567 The third specimen, at the time unique, which was sent back to me as a large variety of H. eros, I venture to describe as a new species; for there are now many fine examples in the collection of Mr. Hargraves, from the constancy of the characters of which I am enabled to exhibit a specific distinctness from others of the group. HELIX (GEOTROCHUS) MACFARLANEI, sp. nov. Shell imperforate, thin, globosely conical, smooth, white, ornamented with one broad black band encircling the last whorl at the middle, and a broad blackish-brown zone round the umbilical region, also with dark brown or black interrupted broad zigzag lines running interruptedly across the last three whorls, with additional isolated irregularly disposed round black spots, principally on the body-whorl ; apex pale, denuded of colour; transversely finely striated above and below, and concentrically striated at the base ; whorls 6, rounded, gradually increasing in size, last slightly deflected in front at its termination, base convex ; aperture obliquely ovate-lunate ; peristome slightly thickened and everted, margined internally with white, and externally with orange ; interior of aperture tinged with orange, the external dark band on the body-whorl showing through ; margins approximating, joined by a very thin callus; columella dilated externally, adnate over the umbilical region, internal margin descending, straight. Diam., greatest 0*92, least 0*68 ; height 0*72 of an inch. Hab. Solomon Islands (mus. Cox). I have named this very beautiful species after its discoverer, Captain Macfarlane, who has taken much trouble to collect the shells from the above group, and whose careful observation has greatly assisted in obtaining their correct habitats. It is somewhat allied to H. coxianus of Angas. (The specimen sent was so broken in transit that it could not be figured.-ED.) PUPINA GRANDIS, Forbes, var. MINOR. Amongst a number of specimens recently obtained of this hitherto very rare shell is a small variety, so small, indeed, as to mislead in the identification of the species, if not pointed out. Length 0*88 ; breadth 0*40 of an inch. Hab. Louisiade Islands. A second variety, of a large size, with a white peristome, is also worthy of note. H E L I X ( G E O T R O C H U S ) X A N T H O C H I L A , Pfr. (Plate XLVIII. % . 7.) A variety of this fine species has been obtained in abundance where the reflexed lip is converted into a beautiful broad crenulated frill, and generally pure white. So much does it alter the character of the shell that it would lead to some difficulty in identifying the species. It is no accidental deformity, as the variety is almost as abundant as the original type. |