Liotella
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''Liotella'' is a
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of minute
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 ...
s or
micromollusc A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also r ...
s,
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 ...
mollusc 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 esti ...
s in the
family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Skeneidae The Skeneidae are a speciose family of minute to small marine gastropod molluscs in the superfamily Trochoidea.Bouchet, P.; Gofas, S. (2013). Skeneidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php ...
.Rosenberg, G.; Bouchet, P. (2012). Liotella Iredale, 1915. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=196947 on 2012-09-11


Description

The shells lack a thickened peristome. The shell is depressed. In some species the shell is coiled nearly into one plane, in others it is somewhat more elevated. The
whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...
s are loosely coiled. The operculum is multispiral with a central nucleus. The
sculpture Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable sc ...
shows strong transverse ribs. The spiral sculpture consists of fine lirae between the ribs or is sometimes almost or entirely obsolete.


Species

Species within the genus ''Liotella'' include: * '' Liotella annulata'' (Tenison Woods, 1874) * '' Liotella anxia'' (Hedley, 1909) * '' Liotella aupouria''
Powell Powell may refer to: People * Powell (surname) * Powell (given name) * Powell baronets, several baronetcies *Colonel Powell (disambiguation), several military officers *General Powell (disambiguation), several military leaders *Governor Powell (di ...
, 1937
* '' Liotella cancellata'' (Krauss, 1848) * '' Liotella capitata'' (Hedley, 1907) * '' Liotella compacta'' (Petterd, 1884) * '' Liotella corona'' (Hedley, 1902) * '' Liotella crassicostata'' (Strebel, 1908) * '' Liotella elegans'' Laseron, 1958 ** '' Liotella elegans darwinensis'' * '' Liotella endeavourensis'' Dell, 1990 * '' Liotella indigens'' Finlay, 1927 * '' Liotella johnstoni'' (Beddome, 1883) * '' Liotella kilcundae'' (Gatliff & Gabriel, 1914) * '' Liotella mackenae''
Dell Dell is an American based technology company. It develops, sells, repairs, and supports computers and related products and services. Dell is owned by its parent company, Dell Technologies. Dell sells personal computers (PCs), servers, data ...
, 1956
* '' Liotella petalifera'' (Hedley & May, 1908) * '' Liotella polypleura'' (Hedley, 1904) * '' Liotella pulcherrima'' (Henn & Brazier, 1894) * '' Liotella rotula'' (
Suter Suter is a surname. Notable people with the name include: * Alexis P. Suter (born 1963), American blues, and soul blues singer and songwriter * Andrew Burn Suter (1830–1895), Bishop of the Diocese of Nelson, New Zealand * August Suter (1887& ...
, 1908)
* '' Liotella vercoi'' (Gatliff & Gabriel, 1914) ;Species brought into synonymy: * ''Liotella coatsiana'' Melvill & Standen, 1912: synonym of '' Lodderia coatsiana'' (Melvill & Standen, 1912) * ''Liotella gravicosta'' Laseron, 1954: synonym of '' Liotella petalifera'' (Hedley & May, 1908) * ''Liotella kirai'' Habe, 1961: synonym of '' Munditiella kirai'' (Habe, 1961) * ''Liotella littoralis'' Laseron, 1954: synonym of '' Liotella johnstoni'' (Beddome, 1883) * ''Liotella parvirota'' Laseron, 1954: synonym of '' Liotella kilcundae'' (Gatliff & Gabriel, 1914) * ''Liotella patonga'' Laseron, 1954: synonym of '' Liotella annulata'' (Tenison Woods, 1874) * ''Liotella princeps'' Laseron, 1954: synonym of '' Liotella johnstoni'' (Beddome, 1883) Seashells of New South Wales: ''Liotella johnstoni''
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References


External links




Further reading

* Iredale, 1915, Transactions of the New Zealand Institute, 47: 442 * Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979
GBIF
* Spencer, H.; Marshall. B. (2009). ''All Mollusca except Opisthobranchia''. In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp {{Taxonbar, from=Q3168499 Skeneidae Gastropod genera