''Tonna allium'',

common name In biology, a common name of a taxon or organism (also known as a vernacular name, English name, colloquial name, country name, popular name, or farmer's name) is a name that is based on the normal language of everyday life; and is often con ...

the costate tun, is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of large

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

, a marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Tonnidae The Tonnidae are a family (biology), family of medium-sized to very large sea snails, known as the tun shells. These are marine invertebrates, marine gastropod molluscs in the clade Littorinimorpha. The name ''tun'' refers to the snails' shell sh ...

, the tun shells.

Description

The size of an adult shell varies between 50 mm and 131 mm.

Distribution

This species occurs in the Indian Ocean off

Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...

, the

Mascarene The Mascarene Islands (, ) or Mascarenes or Mascarenhas Archipelago is a group of islands in the Indian Ocean east of Madagascar consisting of islands belonging to the Republic of Mauritius as well as the French department of Réunion. Their na ...

Basin and

Mauritius Mauritius, officially the Republic of Mauritius, is an island country in the Indian Ocean, about off the southeastern coast of East Africa, east of Madagascar. It includes the main island (also called Mauritius), as well as Rodrigues, Ag ...

References

* Martin, K. (1879-1880). Die Tertiärschichten auf Java, nach den Entdeckungen von Fr. Junghuhn. Leiden: Brill. [Paleontologischer Theil, 1–126 (1879); 127–164, i–vi (plate captions) (1880); Allgemeiner Theil, 1–51 (1880); Anhang, 1–6 (1880); Title page and Vorwort, i–ix, * Smith, E. A. 1906. On South African marine Mollusca, with descriptions of new species. Annals of the Natal Government Museum 1:19-71, pls. 7-8 * Dautzenberg, Ph. (1929). ''Mollusques testacés marins de Madagascar''. Faune des Colonies Francaises, Tome III * Cernohorsky. W. O. (1972). Marine Shells of the Pacific. Vol. II. Pacific Publications, Sydney, 411 pp. * Drivas, J. & M. Jay (1988). ''Coquillages de La Réunion et de l'île Maurice'' * Michel, C. (1988). ''Marine molluscs of Mauritius''. Editions de l'Ocean Indien. Stanley, Rose Hill. Mauritius * Bozzetti L. & Ferrario M. (2005) ''Three new species and a new subspecies from the South-Western Indian Ocean (Gastropoda: Prosobranchia: Turbinidae, Tonnidae, Buccinidae, Conidae)''. Visaya 1(4): 51–58. [April 2005] * Steyn, D. G.; Lussi, M. (2005). Offshore Shells of Southern Africa: A pictorial guide to more than 750 Gastropods. Published by the authors. pp. i–vi, 1–289. * Beu, A. G. (2005) Neogene fossil tonnoidean gastropods of Indonesia. Scripta Geologica 130, p. 1-186, pp. 166, figs. 327 * Vos, C. (2007). A conchological Iconography (No. 13) -'' The family Tonnidae''. 123 pp., 30 numb. plus 41 (1 col.) un-numb. text-figs, 33 maps., 63 col. pls, Conchbooks, Germany * Vos, C. (2008) Tonnidae. in Poppe G.T. (ed.) Philippine Marine Mollusks, Volume 1: Gastropoda 1: 594–611, pls 242–250. Conchbooks, Hackenheim, Germany. * Liu, J.Y. uiyu(ed.). (2008). Checklist of marine biota of China seas. China Science Press. 1267 pp. * Vos, C. (2012) Overview of the Tonnidae (MOLLUSCA: GASTROPODA) in Chinese waters. Shell Discoveries 1(1); pp. 12–22; Pls. 1-9 * Vos, C. (2013) Overview of the Tonnidae (Mollusca: Gastropoda) in Chinese waters. Gloria Maris 52(1-2); pp. 22–53; Pls. 1-9 * Severns, M. (2011). Shells of the Hawaiian Islands - The Sea Shells. Conchbooks, Hackenheim. 564 pp.

External links

gastropods.com : ''Tonna (Dolium complex) allium''; accessed : 26 April 2011

Menke, K. T. (1828). Synopsis methodica molluscorum generum omnium et specierum earum, quae in Museo Menkeano adservantur; cum synonymia critica et novarum specierum diagnosibus. XII + 91 pp.

Dillwyn, 1817. A descriptive catalogue of Recent shells, arranged according to the Linnean method; with particular attention to the synonymy. London: John and Arthur Arch. Vol. 1: 1-580; Vol. 2: 581-1092 + index

Röding, P. F. (1798). Museum Boltenianum sive Catalogus cimeliorum e tribus regnis naturæ quæ olim collegerat Joa. Fried Bolten, M. D. p. d. per XL. annos proto physicus Hamburgensis. Pars secunda continens Conchylia sive Testacea univalvia, bivalvia & multivalvia. Trapp, Hamburg. viii, 199 pp.

Schröter, J. S. in Martini, F.H.W. (1788) Vollstandiges alphabetisches Namen-Register über alle Zehn Bande des von dem feel. Herrn D. Martini in Berlin angefangenen, und vom Herrn Pastor Chemnitz in Kopenhagen fortgesetzten und vollenbeten Systematisches Conchylien-Cabinets. Nürnberg, in der Rasplichen Buchhandlung, 1788

Martini, F. H. W. (1777) Neues systematisches Conchylien-Cabinet. Nach der Natur gezeichnet und mit lebendigen Farben erleuchtet. III

Hanley, S. (1860). Systematic list of the species of Dolium restricted. Proceedings of the Zoological Society of London. 1859, 27: 487-493.

Boettger, O. (1883). Mollusca. In Verbeek, R. D. M., Boettger, O. & von Fritsch, K. (Eds.) Die Tertiärformation von Sumatra und ihre Thierreste. Palaeontographica, Supplement. 3(10/11), pp. 1-151

Deshayes, G. P. & Milne-Edwards, H. (1844). Histoire naturelle des animaux sans vertèbres, présentant les caractères généraux et particuliers de ces animaux, leur distribution, leurs classes, leurs familles, leurs genres, et la citation des principales espèces qui s'y rapportent, par J. B. P. A. de Lamarck. Deuxième édition, Tome dixième. Histoire des Mollusques. J. B. Baillière: Paris. 638 pp.
Tonnidae Molluscs of the Indian Ocean Gastropods described in 1817 Taxa named by Lewis Weston Dillwyn {{Tonnidae-stub