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''Gelagna succincta'', common name the lesser girdled triton, is a
species In biology, a species is the basic unit of Taxonomy (biology), 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 ...
of
predatory Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill t ...
sea snail, 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
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 es ...
in the
family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Cymatiidae Cymatiidae is a family of large sea snails in the superfamily Tonnoidea and the order Littorinimorpha. Members of this family are predators. Genera The family Cymatiidae contains the following genera: * '' Argobuccinum'' Herrmannsen, 1846 * ' ...
.


Distribution

This species is distributed in the
Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by ...
(Tanzania, Madagascar), in the Atlantic Ocean (Gabon, West Africa, Cape Verde) and the
Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; ...
.
Also reported from Brazil and from South-East Florida.
Beached shells are rarely known from the East coast of Barbados, Lesser Antilles.


Description

The shell size varies between 30 mm and 80 mm. The maximum recorded
shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses ** Thin-shell structure Science Biology * Seashell, a hard o ...
length is 45 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLOS One'' 5(1): e8776. .


Habitat

The minimum recorded depth for this species is 20 m; maximum recorded depth is 20 m.


References


Further reading

* Spry, J.F. (1961). ''The sea shells of Dar es Salaam: Gastropods''. Tanganyika Notes and Records 56 * Bernard, P.A. (Ed.) (1984). ''Coquillages du Gabon hells of Gabon'. Pierre A. Bernard: Libreville, Gabon. 140, 75 plates * Rolán E., 2005. ''Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda''


External links


Gastropods.com ; ''Cymatium'' (''Gelagna'') ''succinctum''; accessed : 7 November 2010
{{DEFAULTSORT:Gelagna Succincta Cymatiidae Taxa named by Carl Linnaeus Molluscs described in 1771 Molluscs of the Atlantic Ocean Molluscs of the Indian Ocean Invertebrates of Gabon Invertebrates of Tanzania Fauna of the Red Sea