''Clanculus stigmatarius'' 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

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. (2014). Clanculus stigmatarius. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=594180 on 2014-05-28

Description

This species has a widely conical trochid (

top A spinning top, or simply a top, is a toy with a squat body and a sharp point at the bottom, designed to be spun on its vertical axis, balancing on the tip due to the gyroscopic effect. Once set in motion, a top will usually wobble for a few ...

-shaped) shell, with a more highly raised

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 ...

than is typical for the genus. The shell has spirally ribbed sculpture consisting of conspicuous regular rows of robust, round beads. The whorls show a profile with a deep suture, and the final whorl is slightly inflated. The aperture of the shell is white, oval, with a strongly ridged lip. The umbilicus is deep. The main color of the body of the shell is tan to golden, with a distinctive repeating pattern of rounded beads in colors that include bright pink, red, and ivory white.

Distribution

This species occurs from Port Douglas to Capricorn and Bunker Group,

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

in the

Indo-Pacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...

. Alternately, the distribution is listed as: Australia,

New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st ...

, Western Pacific,

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

. A single reference has been found for the species in

Okinawa is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi). Naha is the capital and largest city ...

, Japan.Fujukan: University Museum, University of the Ryukyus, Fujukan Online Collection Database, http://fujukan.lib.u-ryukyu.ac.jp/en/spec/details.php?id=RUMF-ZM-06635&lang=en

References

* 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 * 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 * Hedley, C. 1907. ''The Mollusca of Mast Head Reef, Capricorn Group, Queensland, part II.'' Proceedings of the Linnean Society of New South Wales 32: 476-513, pls 16-2 * Oliver, W.R.B. 1915. ''The Mollusca of the Kermadec Islands''. Transactions of the New Zealand Institute 47: 509-568 * Short, J.W. & Potter, D.G. 1987. ''Shells of Queensland and The Great Barrier Reef''. Drummoyne, NSW : Golden press Pty Ltd 135 pp., 60 pl. * 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 {{DEFAULTSORT:Clanculus Stigmatarius stigmatarius Gastropods described in 1853