''Clanculus philippii'', common name Philippi's cone, 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 ...

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 philippii'' (Koch in Philippi, 1843). 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=594206 on 2012-11-23

Description

The size of the shell varies between 7 mm and 13 mm. The very solid shell has a conical shape and is angulate at the periphery, with a very shallow umbilicus. It is white, variegated with maculations and radiating zigzag stripes of purplish red. The five

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 planulate and turgid below the subcanaliculate sutures. The apical ones, when not eroded, are spirally striate, the following granose-lirate, the last bearing on its upper surface five coarse beaded lirae, the fifth forming the periphery. The base of the shell is slightly convex, bearing six beaded lirae. The interstices between the lirae are finely obliquely striate. The

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 rounded-tetragonal, pearly within. The outer lip is lirate within. The basal lip is curved and subdenticulate. The short columella is hardly perceptibly folded above and dentate below. The umbilicus perforates scarcely deeper than the insertion of the straight columella.H. Pilsbry, Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
(described as ''Trochus yatesi'')

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. 1843. ''Abbildungen und Beschriebungen neuer oder wenig gekannter Conchylien''. Cassel : T. Fischer Vol. 1 pp. 21–76 * 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 * Crosse, H. 1863. ''Description d'espèces nouvelles''. Journal de Conchyliologie 11: 379–386, pl. 13 * 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" * Tenison-Woods, J.E. 1877. ''On some new Tasmanian marine shells.'' Papers and Proceedings of the Royal Society of Tasmania 1876: 131-159 * 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 * Fischer, P. 1879. ''Genres Calcar, Trochus, Xenophora, Tectarius et Risella''. 337–463, 120 pls in Keiner, L.C. (ed.). Spécies general et iconographie des coquilles vivantes. Paris : J.B. Baillière Vol. 3. * Tenison-Woods, J.E. 1880. ''On some Tasmanian Trochidae''. Proceedings of the Royal Society of Tasmania 1879: 59-70 * Tate, R. 1897. ''Critical remarks on some Australian Mollusca.'' Transactions of the Royal Society of South Australia 1897: 40-49 * 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 * May, W.L 1903. ''On Tenison-Woods types in the Tasmanian Museum'', Hobart. Proceedings of the Royal Society of Tasmania 1902: 106-114 * Hedley, C. 1913. ''Studies of Australian Mollusca. Part XI''. Proceedings of the Linnean Society of New South Wales 38: 258-339 * Hardy, G.H. 1916. ''List of the Tenison Woods types of recent molluscs in the Tasmanian Museum''. Proceedings of the Royal Society of Tasmania 1915: 68 * 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. & 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. * 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 (1 publication)

World Register of Marine Species
* {{Taxonbar, from=Q13583727 philippii Gastropods of Australia Gastropods described in 1843