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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    is very much smaller, the spire less conoid, and much more rounded below. The sculpture is similar to that of Kcdiella. Nothing is known of the anatomy of these very minute species.] 434. Kaliella? nongsteinensis, Godwin-Austen, Mol. Ind. i, 1883, p. 72, pi. 16, tig. 2 (shell). Shell imperforate, conoid, subtrochiform, under a powerful microscope costulately striate, pale brownish; spire conoidal, rather high, sides convex, apex obtuse, suture shallow; whorls 8, closely wound, slightly convex, the last carinate, projecting in the middle around the umbilical region, rather flat outside near the keel; aperture narrow, rectangular, oblique to the axis of the shell; peristome ? Diam. 2, height 1*7 mm. Hob. Maotherichan Peak, N. Khasi. [435. Kaliella bhutanensis, Godivin-Austen, Mol. Ind, ii, 1907, p. 196, pi. 103, fig. 7 (shell). Locality. Damsang, Daling District, Western Bhutan Hills. Original description:—Shell conical, perforate, flatly rounded on base, keeled ; sculpture microscopic, transverse, irregular lines of growth, these are well shown on the basal side ; colour pale dull ochreous; spire high, with convex sides, apex blunt; suture very shallow; whorls 8, closely wound, flat-sided ; aperture narrowly quadrate; peristome thin, columellar margin short, nearly vertical. Size: maj. diam. 2*23, alt. axis 1*6 mm. Its nearest ally is K. nongsteinensis, of the North-western Khasi Hills ; but it is broader on the keel in proportion to height of spire and much flatter on the base.] 436. Kaliella? tirutana, Godwin-Austen, Mol. Ind. i, 1883, p. 72, pi. 16, figs. 4, 5 (shell). Shell imperforate, conoidal, with the area below the carination prominent, smooth, whitish horny (? bleached); spire conoidal, sides slightly convex, apex obtuse, suture shallow; whorls 6, convex, closely wound, narrow, the last keeled, flattened, but inclined below keel, and projecting considerably in the umbilical region ; aperture narrow across, but long, almost rectangular, and elongate in a line oblique to the axis; peristome with columellar margin straight, oblique, and reflected. Diam. 1|, height 1| mm. This resembles nongsteinensis, but is smaller, and has fewer whorls and a less convex spire. It has the same rectangular mouth inclined to the axis of the shell.