''Cecina'' 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 ...

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 which have a

gill A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are ...

and an operculum,

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 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 e ...

s or

micromollusk 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 ...

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 ...

Pomatiopsidae Pomatiopsidae is a family of small, mainly freshwater snails, (some also occur in other habitats) that have gills and an operculum, aquatic gastropod mollusks in the superfamily Truncatelloidea (according to the taxonomy of the Gastropoda by ...

. They live in shallow waters in

littoral The littoral zone or nearshore is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely inundated), to coastal areas ...

and supralittoral habitats.Prozorova L. A. (2003). "Morphological Features of Supralittoral Mollusks of the Genus ''Cecina'' (Gastropoda: Pomatiopsidae) from Peter the Great Bay, Sea of Japan ". ''

Russian Journal of Marine Biology Russian(s) refers to anything related to Russia, including: *Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *Rossiyane (), Russian language term for all citizens and peo ...

'' 29(1): 49-52. .

Distribution

The distribution of the genus ''Cecina'' includes the

Sea of Japan The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of the Russian Far East. The Japanese archipelago separates the sea from the Pacific Ocean. Like the Mediterranean Sea, it h ...

Primorsky Krai Primorsky Krai (russian: Приморский край, r=Primorsky kray, p=prʲɪˈmorskʲɪj kraj), informally known as Primorye (, ), is a federal subject (a krai) of Russia, located in the Far East region of the country and is a part of the ...

, Russia, Japan and

Washington state Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washington ...

, USA.

Species

In 1861, Arthur Adams described the genus ''Cecina'' as a

monotypic genus In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

with '' Cecina manchurica'' as the only species. The current classification of ''Cecina'' follows Davis (1979)Davis G. M. (1979). "The origin and evolution of the gastropod family Pomatiopsidae, with emphasis on the Mekong river Triculinae". ''

Academy of natural Sciences of Philadelphia The Academy of Natural Sciences of Drexel University, formerly the Academy of Natural Sciences of Philadelphia, is the oldest natural science research institution and museum in the Americas. It was founded in 1812, by many of the leading natura ...

'', Monograph 20: 1-120. and other authors.Kameda Y. & Kato M. (2011). "Terrestrial invasion of pomatiopsid gastropods in the heavy-snow region of the Japanese Archipelago". ''

BMC Evolutionary Biology ''BMC Ecology and Evolution'' (since January 2021), previously ''BMC Evolutionary Biology'' (2001–2020), is a peer-reviewed open access scientific journal covering all fields of evolutionary biology, including phylogenetics and palaeontology. It ...

'' 11: 118. . In 1996, Larisa A. Prozorova reviewed the genus, described 6 new species of ''Cecina'' and re-established '' Cecina tatarica'' as a separate species. Прозорова Л. А. rozorova L. A.(1996). "Виды рода ''Cecina'' (Gastropoda, Pomatiopsidae) Дальнего Востока России. pecies composition of the genus ''Cecina'' (Gastropoda, Pomatiopsidae from the Russian far East. ''

Zoologicheskii Zhurnal ''Zoologicheskii Zhurnal'' (russian: Зоологический Журнал, ''Zoological Journal'') is a peer-reviewed scientific journal published in Russian covering research in zoology. species within the genus ''Cecina'': * '' Cecina alta'' Prozorova, 1996 * '' Cecina elenae'' Prozorova, 1996 * '' Cecina kunashirica'' Prozorova, 1996 * '' Cecina manchurica'' A. Adams, 1861WoRMS (2010). ''Cecina manchurica'' A. Adams, 1861. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=397034 on 2011-04-04 - type species * '' Cecina murshudovi'' Prozorova, 1996 * '' Cecina satrae'' Prozorova, 1996 * '' Cecina scarlatoi'' Prozorova, 1996 * '' Cecina tatarica'' (Schrenck, 1867)

References

{{Taxonbar, from=Q5056527 Pomatiopsidae