. Mollusca ... X 3. Pseadaustenia aterrima,A. Animal, seen from behind; shell not removed, showing the membranaceous peristome and the dorsal lappets. X Shell. X 3. Eight side and interior Genitalia, x Jaw. X 9,] Animal varying from chestnut or pale grey to black, more orless mottled and banded. Length, when living, about 50 mm. PSRUDAUSTEJflA.—OEYPTOSOMA. 209 {2 inches) ; the hinder part of the foot long and narrow, with asmall mucous pore overhung by a small lobe. The foot is distinctlydivided into three longitudinally. Eadula 24 .1. 19 .1. 19 .1. 24(44 .1. 44). 513. Pse
. Mollusca ... X 3. Pseadaustenia aterrima,A. Animal, seen from behind; shell not removed, showing the membranaceous peristome and the dorsal lappets. X Shell. X 3. Eight side and interior Genitalia, x Jaw. X 9,] Animal varying from chestnut or pale grey to black, more orless mottled and banded. Length, when living, about 50 mm. PSRUDAUSTEJflA.—OEYPTOSOMA. 209 {2 inches) ; the hinder part of the foot long and narrow, with asmall mucous pore overhung by a small lobe. The foot is distinctlydivided into three longitudinally. Eadula 24 .1. 19 .1. 19 .1. 24(44 .1. 44). 513. Pseudaustenia auriformis, Blf. (Vitrina) J. A. 8. B. 1866, 2,p. 36; Ffr. (Vitrina) Mon. Hel. v, 1868, p. 15; Nevill (Helicarion),Sand-l. i, 1878, p. 16; Godwin-Austen (Africarion), Mol. Ind. i,1888, p. 245, pi. 57, fig. 7 (shell). Shell very depressed, oblong-ovate, very thin, smooth, convexwithout, with a greenish membranaceous epidermis, which pro-jects beyond the peristome, nucleus paler; spire flat, about Ig. Fig. 73.—Psettdaustenia auriformis. whorls. Aperture occupying the whole lower surface of the shelland exposing the interior to the apex. Length 13, breadth 8, height 2^ mm. Hah. Sispara Ghat, Nilgiri Hills. Animal not known. The shell differs from that of P. atra bybeing more oblong and less elliptical, and by the smaller apex,the outline of which projects beyond the margin of the peristome. Genus CUYPTOSOMA. Cryptosoma, Theobald, J. A. 8. B. xxvi, 1857, p. 252; Godwin-Austen, Mol. Ind. i, 1888, p. 14, pi. 4 (animal, shell, and details ofanatomy) ; ii, 1S98, p. 50 (anatomy). Type, 0. prcestans, Gould. Range. Burma, Siam, and Southern China to Hong-Kong. Shell imperforate and with few whorls, like that of Vitrina,and only differing from Helicarion in being thicker, in the lastwhorl descending, and especially in having a stronger peristome,which, in the dry season, is furnished with an epiphragm. Animal retractile within the shell. The lobes of the mantleare small as c
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