''Terebellum terebellum'',

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 contrast ...

the Terebellum conch, is a species 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 in the family

Seraphsidae Seraphsidae is a family of small to medium-sized sea snails, marine gastropod molluscs in the superfamily Stromboidea The Stromboidea, originally named the Strombacea by Rafinesque in 1815, is a superfamily of medium-sized to very large sea sn ...

, the true conchs.

Description

''T. terebellum'' is a very active animal that can quickly bury itself in sand or swim away from danger. It uses its foot like a propeller to swim. Its shell is thin and fragile.

Distribution

''T. terebellum'' are found throughout 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 ...

region.

Phylogeny

The phylogenetic relationships among the Stromboidea have been accessed in 2005, by Simone. He proposed a cladogram (a tree of descent) based on an extensive morpho-

anatomical Anatomy () is the branch of biology concerned with the study of the structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old science, having it ...

analysis of representatives of Aporrhaidae, Strombidae, Xenophoridae and

Struthiolariidae Struthiolariidae is a family of small to medium-sized sea snails, marine gastropod molluscs in the superfamily Stromboidea The Stromboidea, originally named the Strombacea by Rafinesque in 1815, is a superfamily of medium-sized to very large s ...

. In his analysis, Simone recognized Strombidae as a

monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic gro ...

taxon supported by 13

synapomorphies In phylogenetics, an apomorphy (or derived trait) is a novel character or character state that has evolved from its ancestral form (or plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxa and is therefore hypothesized to have ...

(traits that are shared by two or more taxa and their most recent common ancestor), with at least eight distinct genera. He considered the genus '' Terebellum'' as the most

basal Basal or basilar is a term meaning ''base'', ''bottom'', or ''minimum''. Science * Basal (anatomy), an anatomical term of location for features associated with the base of an organism or structure * Basal (medicine), a minimal level that is nec ...

taxon, distinguished from the remaining strombids by 13 synapomorphies, including a rounded foot. Though the genus '' Tibia'' was left out of the analysis, Simone regarded it as probably closely related to '' Terebellum'', apparently due to some well known morphological similarities between them.

References

* Walls, J.G. (1980). ''Conchs, tibias and harps. A survey of the molluscan families Strombidae and Harpidae''. T.F.H. Publications Ltd, Hong Kong. * Rosenberg, G. 1992.'' Encyclopedia of Seashells''. Dorset: New York. 224 pp. page(s): 67 * Liverani V. (2014) The superfamily Stromboidea. Addenda and corrigenda. In: G.T. Poppe, K. Groh & C. Renker (eds), A conchological iconography. pp. 1-54, pls 131-164. Harxheim: Conchbooks. * Poppe G.T. & Tagaro S. (2016). New marine mollusks from the central Philippines in the families Aclididae, Chilodontidae, Cuspidariidae, Nuculanidae, Nystiellidae, Seraphsidae and Vanikoridae. Visaya. 4(5): 83-103 * Zhang S.-P.

uping McIlwraith is a rural locality in the Bundaberg Region, Queensland, Australia. In the , McIlwraith had a population of 191 people. History The locality was named after the former railway station, which in turn was named after former Premier of Q ...

(2016). Fauna Sinica. Invertebrata 56. Mollusca: Gastropoda: Strombacea and Naticacea. Beijing: Science Press. 317 pp., 10 pls.

External links

Seraphsidae Gastropods described in 1767 Taxa named by Carl Linnaeus {{Strombidae-stub