|Helicarion mastersi, about 1 inch (2.5 cm) long, crawling on a wet track at Pigeon House Mountain, Australia|
(J. C. Cox, 1868)
Vitrina mastersi J. C. Cox, 1868
Shell depressed, very thin, smooth, transparent, extremely shining, very finely curvately striated, with a few faint spiral lines, bright golden yellow with occasionally a greenish tinge; spire very slightly prominent, apex central, suture impressed, narrowly margined; whorls 3, slightly convex, last rather depressed, rounded at the periphery, and rather convex beneath on outer half; aperture (mollusc) diagonal, lunately ovate; peristome simple, right margin slightly dilated above and in front, left rather straightly continuous with the columella, which is strongly arcuate above, the left margin and base membranous and flattened.
Diameter, greatest 0.55; least 0.38; height 0.17; aperture 0.35 long; 0.27 broad, of an inch.
A delicate bright golden-yellow hyaline shell, allied to V. Strangei, but easily distinguished by being much more depressed, and having half of the base membranous. The animal of this shell is whitish, and not grey as in V. Strangei.
This article incorporates public domain text from the reference
- Cox, J. C. (1868). A Monograph of Australian Land Shells. Sydney: William Maddock. p. 86, plate XIV, figure 12, 12a. Retrieved 2014-10-03.
- Coan E. V., Kabat A. R. & Petit R. E. (15 February 2011). 2,400 years of malacology, 8th ed., 936 pp. + 42 pp. [Annex of Collations]. American Malacological Society
- Iredale, T. (1941). Guide to the land shells of New South Wales Pt III. Australian Naturalist 11. pp. 1–8.
- "Species: Helicarion mastersi (Cox, 1868)". Australian Faunal Directory. 5 February 2014. Retrieved 2014-10-03.
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- "Species Helicarion mastersi (Cox, 1868)". Australian Faunal Directory, accessed 18 September 2011.