Aldisa alabastrina

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Aldisa alabastrina
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Infraclass: Euthyneura
Order: Nudibranchia
Suborder: Doridina
Superfamily: Doridoidea
Family: Cadlinidae
Genus: Aldisa
Species:
A. alabastrina
Binomial name
Aldisa alabastrina
(Cooper, 1863) [1]
Synonyms
  • Doris (Asteronotus) alabastrinaCooper, 1863

Aldisa alabastrina is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Cadlinidae. [2]

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 slug group of marine invertebrates with varying levels of resemblance to terrestrial slugs

Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are actually gastropods, i.e. they are sea snails that over evolutionary time have either completely lost their shells, or have seemingly lost their shells due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells.

Doridoidea superfamily of molluscs

Doridoidea, commonly known as dorid nudibranchs, are a taxonomic superfamily of medium to large, shell-less sea slugs, marine gastropod mollusks in the clade Doridacea, included in the clade Nudibranchia.

Distribution

This species was described from under stones on the shore at San Diego Bay, California, United States. [1]

San Diego City in California, United States

San Diego is a city in the U.S. state of California. It is in San Diego County, on the coast of the Pacific Ocean in Southern California, approximately 120 miles (190 km) south of Los Angeles and immediately adjacent to the border with Mexico.

California State of the United States of America

California is a state in the Pacific Region of the United States. With 39.6 million residents, California is the most populous U.S. state and the third-largest by area. The state capital is Sacramento. The Greater Los Angeles Area and the San Francisco Bay Area are the nation's second- and fifth-most populous urban regions, with 18.7 million and 9.7 million residents respectively. Los Angeles is California's most populous city, and the country's second-most populous, after New York City. California also has the nation's most populous county, Los Angeles County, and its largest county by area, San Bernardino County. The City and County of San Francisco is both the country's second-most densely populated major city after New York City and the fifth-most densely populated county, behind only four of the five New York City boroughs.

United States Federal republic in North America

The United States of America (USA), commonly known as the United States or America, is a country comprising 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is slightly smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U.S. is the third most populous country. The capital is Washington, D.C., and the most populous city is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico. The State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean. The U.S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The extremely diverse geography, climate, and wildlife of the United States make it one of the world's 17 megadiverse countries.

Related Research Articles

<i>Aldisa</i> genus of molluscs

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<i>Doris montereyensis</i> species of mollusc

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<i>Aldisa cooperi</i> species of mollusc

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<i>Aldisa albatrossae</i> species of mollusc

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<i>Aldisa banyulensis</i> species of mollusc

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Aldisa barlettai is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.

Aldisa binotata is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.

Aldisa erwinkoehleri is a species of sea slugs, a dorid nudibranch, a marine gastropod mollusc in the family Cadlinidae.

<i>Aldisa expleta</i> species of mollusc

Aldisa expleta is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.

Aldisa pikokai is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.

<i>Aldisa sanguinea</i> species of mollusc

Aldisa sanguinea, common name the blood-spot dorid, is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.

Aldisa tara is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.

Aldisa williamsi is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.

Aldisa benguelae is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.

Aldisa puntallanensis is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.

<i>Flabellinopsis</i> genus of molluscs

Flabellinopsis is a genus of sea slugs, aeolid nudibranchs, marine gastropod mollusks in the family Flabellinopsidae.

Aldisa fragaria is a species of sea snail, a marine gastropod mollusk, in the family Cadlinidae.

Aldisa zavorensis is a species of sea snail, a marine gastropod mollusk, in the family Cadlinidae.

References

  1. 1 2 Cooper, James Graham. 1863. Some new genera and species of California Mollusca. Proceedings of the California Academy of Natural Sciences 2:202-207.
  2. MolluscaBase (2018). Aldisa alabastrina (Cooper, 1863). Accessed on 2018-12-03