Mollusca : testacellidæ and zonitidæ / by W.T. Blanford and H.H. Godwin-Austen.

  • William Thomas Blanford
Date:
1908
Catalogue details

Licence: In copyright

Credit: Mollusca : testacellidæ and zonitidæ / by W.T. Blanford and H.H. Godwin-Austen. Source: Wellcome Collection.

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    wound, the last large, globose, all separated by a deep suture and an impressed serrulate line ; surface smooth, marked by striae and obsolete waved furrows throughout its length ; aperture round, lunate, broad, columellar margin incurved, slightly reflexed at the base. “ Major diam. 10, min. 7-f mm. “ Animal blackish grey above, anterior lobes with black lines; sole of foot pale, often divided by a paler median zone.” (T7. Canefri, in Latin.) Hab. Near Bhamo. [The next two species were included in MacrocJilamys by Blanford. I place them here because planiuscida certainly is more likely to belong to the Helicidae. Until the animals are examined it is impossible to know what their affinities are.] Depressed or conoidly depressed. Longitudinally striated. Macrochlamys ? anonse, Godwin-Austen, Mol. Ind. i, 1883, p. 91, pi. 14, fig. 8; ii, 1898, p. 48. Shell openly perforate, subumbilicate, convexly depressed, rather solid, finely striated longitudinally under the microscope, yellowish brown; spire convex, suture slightly impressed; whorls 3 j, convex, the last rounded at the periphery and moderately convex beneath; aperture oblique, lunate ; peristome obtuse, columellar margin oblique. Major diam. 11, height 0*6 mm. Hab. Calcutta; found on custard-apples. The description is from the types in the British Museum (Godwin-Austen collection). It is possible that they are immature. Shells not exceeding about 6 millimetres (a quarter of an inch) in diameter. (Generic affinities often doubtful.) Sub globose or subturbinate. Smooth. Macrochlamys ? planiuscula, Hutton (Helix), J. A. S. B. vii, 1838, p. 218 ; Pfr. (Helix) Mon. Hel. i, 1848, p. 60; H $ T. (Helix) C. I. 1876, pi. 32, figs. 7, 10 ; Godwin-Austen, Mol. Ind. i, 1883, p. 88, pi. 16, fig. 7. Shell obtectly perforate, subglobosely depressed, smooth, without sculpture of any kind, translucent, scarcely polished above, more