''Tectus'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

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 ...

s, 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 ...

s 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 ...

Tegulidae Tegulidae is a family of small to large sea snails, marine gastropod mollusks in the superfamily Trochoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2013). Tegulidae Kuroda, Habe & Oyama, 1971. Acces ...

Description

The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal

aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...

is very oblique, angular, and wider than long. The outer

lip The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Mammal lips are soft, movable and serve to facilitate the ingestion of food (e.g. sucklin ...

is lirate within. The

columella Lucius Junius Moderatus Columella (, Arabic: ) was a prominent Roman writer on agriculture in the Roman Empire. His in twelve volumes has been completely preserved and forms an important source on Roman agriculture and ancient Roman cuisin ...

is very short, vertical, with a strong spiral fold, ending anteriorly in a knob or point.

Distribution

This marine genus has a wide distribution. It occurs in the

Persian Gulf The Persian Gulf, sometimes called the Arabian Gulf, is a Mediterranean seas, mediterranean sea in West Asia. The body of water is an extension of the Arabian Sea and the larger Indian Ocean located between Iran and the Arabian Peninsula.Un ...

, the

Red Sea The Red Sea is a sea inlet of the Indian Ocean, lying between Africa and Asia. Its connection to the ocean is in the south, through the Bab-el-Mandeb Strait and the Gulf of Aden. To its north lie the Sinai Peninsula, the Gulf of Aqaba, and th ...

, in the Central and East Indian Ocean and off

East Africa East Africa, also known as Eastern Africa or the East of Africa, is a region at the eastern edge of the Africa, African continent, distinguished by its unique geographical, historical, and cultural landscape. Defined in varying scopes, the regi ...

Oceania Oceania ( , ) is a region, geographical region including Australasia, Melanesia, Micronesia, and Polynesia. Outside of the English-speaking world, Oceania is generally considered a continent, while Mainland Australia is regarded as its co ...

, Indo-China, Indo-Malaysia, the

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

, East

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

, Australia (

New South Wales New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...

Northern Territory The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regi ...

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

Western Australia Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...

Kermadec Islands The Kermadec Islands ( ; ) are a subtropical island arc in the South Pacific Ocean northeast of New Zealand's North Island, and a similar distance southwest of Tonga. The islands are part of New Zealand. They are in total area and uninhabit ...

New Caledonia New Caledonia ( ; ) is a group of islands in the southwest Pacific Ocean, southwest of Vanuatu and east of Australia. Located from Metropolitan France, it forms a Overseas France#Sui generis collectivity, ''sui generis'' collectivity of t ...

Anadaman Islands The Andaman Islands () are an archipelago, made up of 200 islands, in the northeastern Indian Ocean about southwest off the coasts of Myanmar's Ayeyarwady Region. Together with the Nicobar Islands to their south, the Andamans serve as a mari ...

Species

Species within the genus ''Tectus'' include: * † ''

Tectus altavillensis ''Tectus'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae. Description The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal aperture is very oblique, angular, and wider than lo ...

'' (Defrance, 1828) * ''

Tectus architectonicus ''Tectus architectonicus'' is a species of sea snail, a marine gastropod mollusk in the family Tegulidae. Description The imperforate, whitish shell has a conical shape. The whorls are flat, subimbricating, and longitudinally costate. The ribs ...

'' A. Adams, 1853 * † ''

Tectus athenasi ''Tectus'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae. Description The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal aperture is very oblique, angular, and wider than lo ...

'' (Vasseur, 1882) * † ''

Tectus aulacophorus ''Tectus'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae. Description The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal aperture is very oblique, angular, and wider than lo ...

'' (Cossmann & Pissarro, 1905) * † ''

Tectus bareti ''Tectus'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae. Description The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal aperture is very oblique, angular, and wider than lo ...

'' (Vasseur, 1882) * † ''

Tectus bourdoti ''Tectus'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae. Description The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal aperture is very oblique, angular, and wider than lo ...

'' (Cossmann & Pissarro, 1902) * † ''

Tectus branderi ''Tectus'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Tegulidae. Description The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal Aperture (mollusc), ...

'' (Defrance, 1828) * † '' Tectus britannus'' (Vasseur, 1882) * † '' Tectus chavani'' Glibert, 1962 * † '' Tectus chenui'' Le Renard, 1994 * † '' Tectus cognatus'' (J. de C. Sowerby, 1840) * † '' Tectus crenularis'' (Lamarck, 1804) * '' Tectus (Tectus) dentatus'' (Forskål in Niebuhr, 1775) * † '' Tectus extraconicus'' Gain, Belliard & Le Renard, 2019 * '' Tectus fabrei'' (Montrouzier in Fischer, 1878) * '' Tectus fenestratus'' (Gmelin, 1791) * † ''

Tectus fluctus ''Tectus'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae. Description The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal aperture is very oblique, angular, and wider than lon ...

'' Gain, Belliard & Le Renard, 2019 * † '' Tectus fredevillensis'' Gain, Belliard & Le Renard, 2019 * † '' Tectus funiculosus'' (Deshayes, 1832) * † '' Tectus gabrielis'' (d'Orbigny, 1850) * † ''

Tectus gervillii ''Tectus'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae. Description The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal aperture is very oblique, angular, and wider than lon ...

'' Gain, Belliard & Le Renard, 2019 * † '' Tectus leae'' Gain, Belliard & Le Renard, 2019 * † '' Tectus margaritaceus'' (Deshayes, 1832) * '' Tectus mauritianus'' (Gmelin, 1791) * † '' Tectus monilifer'' (Lamarck, 1804) * † '' Tectus montissanctipetri'' (Binkhorst, 1861) * † '' Tectus morgani'' (Cossmann & Pissarro, 1905) * ''

Tectus noduliferus ''Tectus'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae. Description The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal aperture is very oblique, angular, and wider than lon ...

' (Lamarck, 1822) * † '' Tectus ornatus'' (Lamarck, 1804) * † '' Tectus planibasis'' Gain, Belliard & Le Renard, 2019 * '' Tectus pyramis'' (Born, 1778) * † '' Tectus richardi'' Gain, Belliard & Le Renard, 2019 * '' Tectus royanus'' (Iredale, 1912) * † '' Tectus spinalis'' Gain, Belliard & Le Renard, 2019 * † '' Tectus subcanaliculatus'' (Deshayes, 1863) * † '' Tectus torticostulus'' Gain, Belliard & Le Renard, 2019 * '' Tectus triserialis'' (Lamarck, 1822) ;Species brought into synonymy : * ''Tectus concavus'' (Gmelin, 1791): synonym of '' Infundibulum concavum'' (Gmelin, 1791) * ''Tectus conus'' (Gmelin, 1791): synonym of '' Rochia conus'' (Gmelin, 1791) * ''Tectus elatus'' (Lamarck, 1822): synonym of '' Rochia elata'' (Lamarck, 1822) * ''Tectus magnificus'' Poppe, 2004: synonym of '' Rochia magnifica'' (Poppe, 2004) * ''Tectus maximus'' (Koch in Philippi, 1844): synonym of '' Rochia maxima'' (Koch, 1844) * ''Tectus niloticus'' (Linnaeus, 1767): synonym of '' Rochia nilotica'' (Linnaeus, 1767) * ''Tectus pagodalis'' Montfort, 1810: synonym of ''Tectus mauritianus'' (Gmelin, 1791) * ''Tectus tentorium'' (Gmelin, 1791): synonym of ''

Trochus tentorium ''Trochus tentorium'' is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.MolluscaBase eds. (2022). MolluscaBase. Trochus tentorium Gmelin, 1791. Accessed through: World Register of Marine Species at: https://www.marine ...

'' Gmelin, 1791 * ''Tectus tabidus'' Reeve, L.A., 1861: synonym of ''Tectus pyramis'' (Born, 1778) * ''Tectus virgatus'' (Gmelin, 1791): synonym of '' Rochia virgata'' (Gmelin, 1791)

References

* Vaught, K.C. (1989). ''A classification of the living Mollusca''. American Malacologists: Melbourne, FL (USA). . XII, 195 pp * Williams S.T., Karube S. & Ozawa T. (2008) ''Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined''. Zoologica Scripta 37: 483–506

External links

Montfort P. (Denys de). (1808-1810). Conchyliologie systématique et classification méthodique des coquilles. Paris: Schoell. Vol. 1: pp. lxxxvii + 409 [1808]. Vol. 2: pp. 676 + 16

Schumacher, C. F. (1817). Essai d'un nouveau système des habitations des vers testacés. Schultz, Copenghagen. iv + 288 pp., 22 pls.

Swainson, W. (1840). A treatise on malacology or shells and shell-fish. London, Longman. viii + 419 pp
{{Taxonbar, from=Q7692868 Tegulidae Gastropod genera