Volvarina hedleyi explained

Volvarina hedleyi is a species of sea snail, a marine gastropod mollusk in the family Marginellidae, the margin snails.^[1]

Description

The length of the shell attains 13 mm, its diameter 5.5 mm.

(Original description) The solid shell is cylindroid, with a distinct spire. It is yellowishwhite, with two distinct orange bands. The spire is obtuse and contains four whorls. The aperture is rather narrow and widening anteriorly. The outer lip is slightly thickened, and finely denticulate in the type Some specimens are, however, smooth in this respect. The columella is convexly curved, with four strong oblique plaits, and a tendency towards a fifth. The two orange colour bands divide the shell into three roughly equal divisions. These bands are always distinct without any shading or accessory bands or lines. There is also a patch of the same colour surrounding the anterior plaits. ^[2]

Distribution

This marine species is endemic to Australia and occurs off Tasmania.

References

• Cotton, B.C. 1949. Australian Recent and Tertiary Mollusca, Family Marginellidae. Records of the South Australian Museum (Adelaide) 9(2): 197-224
• Wagner, R.J.L & Abbott, R.T. 1977. Standard Catalog of Shells. Greenville, Delaware : American Malacologists 3rd.
• Hewish, D.R. & Gowlett-Holmes, K.L. 1991. Mollusc type specimens in the South Australian Museum. 4. Gastropoda: Marginellidae. Records of the South Australian Museum (Adelaide) 25(1): 57-70
• Wilson, B. 1994. Australian marine shells. Prosobranch gastropods. Kallaroo, WA : Odyssey Publishing Vol. 2 370 pp.
• Coovert, G.A. 1999. Revision of the nomenclature of the Kaicher Marginella card packs (Cystiscidae, Marginellidae). Marginella Marginalia 10(3-6): 1-39
• Cossignani, T. (2006). Marginellidae & Cystiscidae of the World. L'Informatore Piceno. 408 pp

External links

• Conchology.be: image

Notes and References

1. MolluscaBase eds. (2023). MolluscaBase. Volvarina hedleyi (May, 1911). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=474036 on 2023-09-06
2. https://www.biodiversitylibrary.org/page/10108849 May, W.L. (1911). New marine Mollusca. Papers and Proceedings of the Royal Society of Tasmania. (for 1910): 380–398, pls 13–15