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.

    305/352 (page 269)
    Original description:— Shell globosely conoid, very narrowly umbilicated, rounded below; sculpture very fine, regular trans- verse ribbing; colour umber-brown; spire less than breadth, apex blunt; suture well impressed; whorls 5|, rather closely wound, sides convex; aperture lunate, suboblique; peristome thin, scarcely reflected, columellar margin suboblique. Size : maj. diam. 2*1, alt. axis 1*4 mm. Compared with K. Ihotaensis, this shell is smaller and the whorls much more convex ; with typical fiatura, it is larger, but the whorls do not increase in the same way and in the same proportion; and the same may be said of the very similar shell from the Sikhim frontier, which differs in having a larger body- whorl and larger aperture ; they all, in fact, merge into one another.] 429. Kaliella ? fiatura, Godwin-Austen, Mol. Ind. i, 1882, p. 23, pi. 5, fig. 10 (shell). Shell perforate, convexly conoid, subturbinate, very finely costulately striated under the microscope, the sculpture generally obsolete, below marked with curved radiating striae, horny brown ; spire conoid, sides convex, apex obtuse, suture impressed; whorls 5, convex, last broader, rounded at periphery and below; aperture semicircularly ovate, subvertical; peristome thin, columellar margin vertical and reflected. Diam. 2, height 1*5 mm. Hab. Manipur. This has a deeper suture and a broader last whorl than the species of the K. nana section generally. [430. Kaliella? fiatura, var., Godivin-Austen, Mol. Ind. ii, 1907, p. 176, pi. 103, fig. 3 (shell). Kaliella fiatura, Godwin-Austen, Mol. Ind. i, 1882, p. 23, pi. 5, fig. 10. Locality. Richila Peak, 10,370 feet, on Darjiling-Bhutan frontier (W. Robert), also Risett chu Valley and Damsang. Original description:—Shell globosely conoid, umbilicated ; sculpture very minute, transverse ribbing, only visible under high power, smooth to eye and not so regular on the last whorl as it is on the rest of the whorls; colour pale ochre; spire, sides slightly convex, apex rounded, suture well impressed ; whorls 5, very convex; aperture semilunate; peristome thin, columellar margin suboblique and slightly reflected. Size : maj. diam. 2*25, alt. axis 1-30 mm. It is interesting to find this minute shell in the Eastern Himalaya, so extremely close inform to that I found in Munipur, the sculpture on the last whorl not being so regular as in the type ; it is similar above.]