''Triviella'', common name the smooth pearl cowries, 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 ...
of small
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 ...
mollusc
Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...
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 ...
Triviidae
Triviidae is a taxonomic family of small sea snails, marine gastropod molluscs in the superfamily Cypraeoidea of the order Littorinimorpha. MolluscaBase eds. (2020). MolluscaBase. Triviidae Troschel, 1863. Accessed through: World Register of Ma ...
, the trivias.
[Gofas, S. (2010). Triviella Jousseaume, 1884. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=391358 on 2010-12-13]
Characteristics
The genus *Triviella* (formerly considered a subgenus of *Trivia*) includes several species that are highly similar and often require microscopic examination of the live animal for accurate species-level identification. The shells of smooth pearl cowrie species are inflated and globular, with a thickened labrum (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 ...
of the aperture) that features well-developed denticles. These denticles often extend as transverse ridges around the outer lip, occasionally reaching the lower lateral part of the dorsum. Additionally, the inner lip of the aperture is also denticulate.
[ ]
Species
Species within the genus ''Triviella'' include:
* ''
Triviella amaryllis''
Schilder, 1925
* ''
Triviella aperta''
( Swainson, 1822)[WoRMS : Triviella](_blank)
/ref>
* '' Triviella calvariola'' (Kilburn, 1980)
* '' Triviella carptima'' Fehse, 2016Gmelin Gmelin may refer to:
* Karl Christian Gmelin, Carl Christian Gmelin (1762–1837), German botanist, author of ''Flora Badensis, Alsatica et confinium regionum cis- et transrhenania'' (1806)
* Charles Gmelin (1872–1950), British Olympic athlete
* ...
, 1791)
* '' Triviella debruini'' (Lorenz, 1994)
* '' Triviella eratoides'' (Liltved, 1986)
* '' Triviella franziskae'' Fehse & Massier, 2000[Fehse D. (2016). "Revision of the Genus ''Triviella'' Jousseaume, 1884 (Mollusca, Gastropoda) (Contributions to the knowledge of the Triviidae, XXX)". '' Acta Conchyliorum'' (15): 211 pp.]
* ''Triviella lowtheri
''Triviella lowtheri'' is a species of small sea snail, a marine gastropod mollusc in the family Triviidae
Triviidae is a taxonomic family of small sea snails, marine gastropod molluscs in the superfamily Cypraeoidea of the order Littorinim ...
'' Beals, 2008Lamarck
Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolo ...
, 1811)Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...
, 1758
Events
January–March
* January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of ''Systema Naturae'', the starting point of modern zoologic ...
)
* ''Triviella maoriensis'' Mestayer, 1927: synonym of '' Ellatrivia merces'' ( Iredale, 1924)
* ''Triviella memorata'' Finlay
Finlay is a masculine given name, and also a surname. The given name is represented in Scottish Gaelic as Fionnlagh.
Given name Finlay
*Finlay Calder, Scottish rugby player
* Finlay Christie (comedian), British comedian
* Finlay Christie, Scottis ...
, 1926: synonym of '' Ellatrivia merces'' ( Iredale, 1924)
* ''Triviella merces'' Iredale, 1924: synonym of '' Ellatrivia merces'' ( Iredale, 1924)
* ''Triviella porcellio'' Cate, 1979: synonym of '' Triviella neglecta'' Schilder, 1930
* ''Triviella virginiae'' (Liltved, 1986): synonym of '' Triviella vesicularis'' (Gaskoin, 1836)
References
Further reading
* Fehse D. & Massier W. (2000). "A new ''Triviella'' (Gastropoda: Triviidae) from South Africa". ''La Conchiglia'' 32(294–295): 123–126.
* Fehse D. (2016). ''Contributions to the knowledge of the Triviidae, XXX. Revision of the genus Triviella Jousseaume, 1884 (Mollusca: Gastropoda)''. Acta Conchyliorum. 15: 7-211.
{{Taxonbar, from=Q7844668
Triviidae
Gastropod genera