''Clanculus albanyensis'', common name the yellow top shell, is a
species of
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
, a
marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk in the
family Trochidae, the top snails.
[Rosenberg, G. (2012). ''Clanculus albanyensis'' Jansen, 1995. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=594183 on 2012-11-23]
Description
The height of the shell attains 12 mm. The umbilicate shell has a conoidal shape. It is isabella-colored and sculptured with very fine spiral lirae, about 11 on the penultimate
whorl
A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs).
Whorls in nature
File:Photograph and axial plane flo ...
, 40 on the last whorl. They are on the upper whorls distinctly granulose, on the last almost entirely smooth. The 6 to 7 whorls are rather rounded with a convex base, the last one is scarcely angled. The margin of the narrow
umbilicus is dentate. The
columella is very oblique, not solute above and terminates below in a simple, small denticle. The outer
lip is thickened within with five folds but near the edge with numerous wrinkles.
Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
(described as ''Trochus ochroleucus'')
Distribution
This marine species is endemic to Australia and occurs off South Australia, Tasmania, Victoria and Western Australia.
References
* Philippi, R.A. 1849. ''Trochidae''. 73-120, pls 36-39 in Küster, H.C. (ed). Systematisches Conchylien-Cabinet von Martini und Chemnitz. Nürnberg : Bauer & Raspe Vol. II.
* Philippi, R.A. 1852. ''Trochidae''. pp. 233–248 in Küster, H.C. (ed). Systematisches Conchylien-Cabinet von Martini und Chemnitz. Nürnberg : Bauer & Raspe Vol. 2.
*
*
* May, W.L. 1921. ''A Checklist of the Mollusca of Tasmania''. Hobart, Tasmania : Government Printer 114 pp.
* May, W.L. 1923. ''An Illustrated Index of Tasmanian Shells''. Hobart : Government Printer 100 pp.
* Cotton, B.C. 1959. ''South Australian Mollusca. Archaeogastropoda''. Handbook of the Flora and Fauna of South Australia. Adelaide : South Australian Government Printer 449 pp
* Macpherson, J.H. & Gabriel, C.J. 1962. ''Marine Molluscs of Victoria''. Melbourne : Melbourne University Press & National Museum of Victoria 475 pp.
*
* Wilson, B. 1994. ''Australian Marine Shells. Prosobranch Gastropods.'' Kallaroo, WA : Odyssey Publishing Vol. 2 370 pp.
External links
*
External links
To World Register of Marine Species
albanyensis
Gastropods of Australia
Gastropods described in 1995
{{Trochidae-stub