Cythnia asteriaphila

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Cythnia asteriaphila
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked):clade Caenogastropoda
Superfamily: Eulimoidea
Family: Eulimidae
Genus: Cythnia
Species:C. asteriaphila
Binomial name
Cythnia asteriaphila
Carpenter, 1864

Cythnia asteriaphila is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of two known species to exist within the genus, Cythnia , the other one is Cythnia albida . [1]

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 common name for snails that normally live in saltwater

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.

Family is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as being the "walnut family".

Contents

Distribution

This species is mainly distributed off the coasts of America in the Pacific Ocean and the Atlantic Ocean.

Americas landmass comprising the continents of North America and South America

The Americas comprise the totality of the continents of North and South America. Together, they make up most of the land in Earth's western hemisphere and comprise the New World.

Pacific Ocean Ocean between Asia and Australia in the west, the Americas in the east and Antarctica or the Southern Ocean in the south.

The Pacific Ocean is the largest and deepest of Earth's oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean in the south and is bounded by Asia and Australia in the west and the Americas in the east.

Atlantic Ocean Ocean between Europe, Africa and the Americas

The Atlantic Ocean is the second largest of the world's oceans, with an area of about 106,460,000 square kilometers. It covers approximately 20 percent of the Earth's surface and about 29 percent of its water surface area. It separates the "Old World" from the "New World".

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Asterophila japonica is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of three known species within the genus Asterophila, the other congeneric species being Asterophila perknasteri and Asterophila rathbunasteri.

Cythnia albida is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of two known species to exist within the genus, Cythnia, with the other one being Cythnia asteriaphila.

Seguenzia certoma is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.

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References

  1. ↑ Carpenter, 1864. Abbott R. T. (1974). American Seashells. The marine mollusca of the Atlantic and Pacific coast of North America. II edit. Van Nostrand, New York 663 p. + 24 pl: page(s): 130. Accessed through: World Register of Marine Species at http://marinespecies.org/aphia.php?p=taxdetails&id=565715 on 2013-01-10.


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