''Clanculus limbatus'', common name the keeled clanculus, is a
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
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
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
in the
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Trochidae
The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Vetigastropoda. This family is commonly known as the top-snails because in many species the shell resembles ...
, the top snails.
[Rosenberg, G. (2012). ''Clanculus limbatus'' (Quoy & Gaimard, 1834). Accessed through: ]World Register of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms.
Content
The content of the registry is edited and maintained by scientific specialist ...
at http://www.marinespecies.org/aphia.php?p=taxdetails&id=594200 on 2012-11-23
Description
The size of the shell varies between 13 mm and 20 mm. The depressed, umbilicate shell has a conoidal shape. It is carinate at its periphery. Its color is whitish or yellowish, maculated with brown, generally with a series of blotches at the periphery and beneath the
suture, the intervening space unicolored or more or less tessellated. The base of the shell is tessellated or radiately flamed. The
spire
A spire is a tall, slender, pointed structure on top of a roof of a building or tower, especially at the summit of church steeples. A spire may have a square, circular, or polygonal plan, with a roughly conical or pyramidal shape. Spires are ...
is low conical with an acute, smooth
apex. The 5 to 6
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 floral ...
s are convex just below the sutures, then flattened, and at the periphery carinated. The sutures are subcanaliculate. The
body whorl
The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk.
In gastropods
In gastropods, the b ...
scarcely descends anteriorly, above with 6 to 8 spiral closely granose cinguli, beneath with 7 to 9 similar concentric cinguli. The interstices both above and below are closely, sharply, obliquely, and microscopically striate. The base of the shell is slightly convex. The oblique
aperture
In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane.
An opt ...
is tetragonal. The outer
lip is four or five-lirate within, the upper fold somewhat enlarged and subdentiform. The basal margin and marginal rib of the
umbilicus are finely plicate. The
columella is oblique, nearly straight, its edge reflexed and plicate-dentate, terminating below in a small square denticle, inserted above upon the side of the umbilicus. The umbilicus is rather wide and funnel-shaped.
H. Pilsbry, Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
(described as ''Trochus limbatus'')
Distribution
This marine species is endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to Australia and occurs off South Australia
South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...
, Tasmania
)
, nickname =
, image_map = Tasmania in Australia.svg
, map_caption = Location of Tasmania in AustraliaCoordinates:
, subdivision_type = Country
, subdi ...
, Victoria and Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...
.
References
* Philippi, R.A. 1849. ''Centuria altera Testaceorum novorum''. Zeitschrift für Malakozoologie 5: 99-112
* 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. 185–232, in Küster, H.C. (ed). Systematisches Conchylien-Cabinet von Martini und Chemnitz. Nürnberg : Bauer & Raspe Vol. 2.
* Adams, A. 1853. ''Contributions towards a monograph of the Trochidae, a family of gastropodous Mollusca.'' Proceedings of the Zoological Society of London 1851(19): 150-192
* Philippi, R.A. 1855. ''Trochidae''. pp. 249–328 in Küster, H.C. (ed). Systematisches Conchylien-Cabinet von Martini und Chemnitz. Nürnberg : Bauer & Raspe Vol. 2
* Angas, G.F. 1865. ''On the marine molluscan fauna of the Province of South Australia, with a list of all the species known up to the present time, together with remarks on their habitats and distribution, etc.'' Proceedings of the Zoological Society of London 1865: 155-"180"
* Tapparone-Canefri, C.M 1873. Malacologia in "Zoologia del viaggio intorno al globo della regia fregata Magenta durante gli anni 1865–68". Zoologia Magenta 162 pp. 4 pls
* Fischer, P. 1877. ''Genres Calcar, Trochus, Xenophora, Tectarius et Risella''. pp. 115–240 in Keiner, L.C. (ed.). Spécies general et iconographie des coquilles vivantes. Paris : J.B. Baillière Vol. 11.
* Tenison-Woods, J.E. 1879. ''Census; with brief descriptions of the marine shells of Tasmania and the adjacent islands''. Proceedings of the Royal Society of Tasmania 1877: 26-57
* Hutton, F.W. 1880. ''Manual of the New Zealand Mollusca''. Wellington : Colonial Museum and Geological Survey Department 224 pp.
* Harris, G.F. 1897. ''Catalogue of Tertiary Mollusca in the Department of Geology, British Museum (Natural History).'' The Australasian Tertiary Mollusca. London : British Museum of Natural History Part 1 407 pp., 8 pls
* Tate, R. & May, W.L. 1901. ''A revised census of the marine Mollusca of Tasmania''. Proceedings of the Linnean Society of New South Wales 26(3): 344-471
* Pritchard, G.B. & Gatliff, J.H. 1902. ''Catalogue of the marine shells of Victoria. Part V''. Proceedings of the Royal Society of Victoria 14(2): 85-138
* 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.
* Iredale, T. 1924. ''Results from Roy Bell's molluscan collections''. Proceedings of the Linnean Society of New South Wales 49(3): 179–279, pl. 33-36
* Cotton, B.C. & Godfrey, F.K. 1934. ''South Australian Shells. Part 11.'' South Australian Naturalist 15(3): 77-92
* 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
* Macpherson, J.H. 1966. ''Port Philip Survey 1957-1963''. Memoirs of the National Museum of Victoria, Melbourne 27: 201-288
* Wells, F.E. & Bryce, C.W. 1986. ''Seashells of Western Australia''. Perth : Western Australian Museum 207 pp.
* Wilson, B. 1993. ''Australian Marine Shells. Prosobranch Gastropods''. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp.
* Jansen, P. 1995. ''A review of the genus Clanculus Montfort, 1810 (Gastropoda: Trochidae) in Australia, with description of a new subspecies and the introduction of a nomen novum.'' Vita Marina 43(1-2): 39-62
External links
Biodiversity Heritage Library (11 publications)
World Register of Marine Species
*
{{Taxonbar, from=Q5125688
limbatus
Gastropods of Australia
Gastropods described in 1834