Ailinzebina elegantissima

Ailinzebina elegantissima
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda ; clade Hypsogastropoda ; clade Littorinimorpha
Superfamily:	Rissooidea
Family:	Rissoinidae
Genus:	Ailinzebina
Species:	A. elegantissima
Binomial name
	Ailinzebina elegantissima; (d’Orbigny, 1842)
Synonyms [1]
	Truncatella caribaensisauct. non Reeve, 1842; Rissoa elegantissimad'Orbigny, 1842 (original combination); Rissoina elegantissima(d'Orbigny, 1842); Rissoina (Ailinzebina) elegantissima(d’Orbigny, 1842);

Last updated March 06, 2019

Ailinzebina elegantissima is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae.^[2] The species name is Latin for the "most elegant".

In biology, a species ( ) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. While these definitions may seem adequate, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies.

Sea snail is a common name for snails that normally live in salt water, in other words marine gastropods. The taxonomic class Gastropoda also includes snails that live in other habitats, such as land snails and freshwater snails. Many species of sea snails are edible and exploited as food sources by humans.

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 reach adult size at very small dimensions.

Description

The maximum recorded shell length is 3.75 mm.^[3]

Distribution

This species occurs in the Caribbean Sea, the Gulf of Mexico and the Lesser Antilles.

The Caribbean Sea is a sea of the Atlantic Ocean in the tropics of the Western Hemisphere. It is bounded by Mexico and Central America to the west and south west, to the north by the Greater Antilles starting with Cuba, to the east by the Lesser Antilles, and to the south by the north coast of South America.

The Gulf of Mexico is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. The U.S. states of Texas, Louisiana, Mississippi, Alabama, and Florida border the Gulf on the north, which are often referred to as the "Third Coast", in comparison with the U.S. Atlantic and Pacific coasts.

The Lesser Antilles is a group of islands in the Caribbean Sea. Most form a long, partly volcanic island arc between the Greater Antilles to the north-west and the continent of South America. The islands form the eastern boundary of the Caribbean Sea with the Atlantic Ocean. Together, the Lesser Antilles and the Greater Antilles compose the Antilles. When combined with the Lucayan Archipelago, all three are known as the West Indies.

Habitat

Minimum recorded depth is 0 m.^[3] Maximum recorded depth is 128 m.^[3]

Related Research Articles

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References

↑ Malacolog : Rissoina elegantissima
↑ Bouchet, P. (2014). Ailinzebina elegantissima (d'Orbigny, 1842). Accessed through: World Register of Marine Species on 2014-05-01
1 2 3 Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi : 10.1371/journal.pone.0008776.

Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.
Sleurs W.J.M. (1993). A revision of the Recent species of Rissoina (Moerchiella), R. (Apataxia), R. (Ailinzebina) and R. (Pachyrissoina) (Gastropoda: Rissoidae). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, 63: 71-13

External links

"Rissoina elegantissima". Gastropods.com. Retrieved 15 January 2019.

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[1] Malacolog : Rissoina elegantissima

[WoRMS-2] Bouchet, P. (2014). Ailinzebina elegantissima (d'Orbigny, 1842). Accessed through: World Register of Marine Species on 2014-05-01

[Welch_2010-3] 1 2 3 Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi : 10.1371/journal.pone.0008776.