Baeolidia australis

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Baeolidia australis
Spurilla Australis.JPG
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Heterobranchia
Clade: Euthyneura
Clade: Nudipleura
Order: Nudibranchia
Clade: Dexiarchia
Infraorder: Cladobranchia
Family: Aeolidiidae
Genus: Baeolidia
Species:B. australis
Binomial name
Baeolidia australis
(Rudman, 1982) [1]
Synonyms

Spurilla australisRudman, 1982 basionym

Baeolidia australis, is a species of sea slug, an aeolid nudibranch found from the west coast of Australia to New Zealand. It is a marine gastropod mollusc in the family Aeolidiidae. [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.

Aeolidioidea superfamily of small sea slugs, the aeolid nudibranchs

Aeolidioidea is a superfamily of sea slugs, the aeolid nudibranchs. They are marine gastropod molluscs in the suborder Cladobranchia.

Contents

Distribution

This species was described from Long Reef, Sydney, Australia. It is reported from South Australia, Western Australia, Queensland and New South Wales, and also from northern New Zealand. [3]

Sydney City in New South Wales, Australia

Sydney is the state capital of New South Wales and the most populous city in Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Port Jackson and extends about 70 km (43.5 mi) on its periphery towards the Blue Mountains to the west, Hawkesbury to the north, the Royal National Park to the south and Macarthur to the south-west. Sydney is made up of 658 suburbs, 40 local government areas and 15 contiguous regions. Residents of the city are known as "Sydneysiders". As of June 2017, Sydney's estimated metropolitan population was 5,131,326, and is home to approximately 65% of the state's population.

South Australia State of Australia

South Australia is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of 983,482 square kilometres (379,725 sq mi), it is the fourth-largest of Australia's states and territories by area, and fifth largest by population. It has a total of 1.7 million people, and its population is the second most highly centralised in Australia, after Western Australia, with more than 77 percent of South Australians living in the capital, Adelaide, or its environs. Other population centres in the state are relatively small; Mount Gambier, the second largest centre, has a population of 28,684.

Western Australia state in Australia

Western Australia is a state occupying the entire western third of Australia. It is bounded by the Indian Ocean to the north and west, and the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of 2,529,875 square kilometres, and the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. The state has about 2.6 million inhabitants – around 11 percent of the national total – of whom the vast majority live in the south-west corner, 79 per cent of the population living in the Perth area, leaving the remainder of the state sparsely populated.

Description

Baeolidia australis is distinguished from Baeolidia moebii by having a thin orange sub-apical band above a broad blue band on each ceras, which is never present in Baeolidia moebii. Baeolidia australis looks bluish whereas Baeolidia moebii is more yellow or brown. The body of Baeolidia australis also seems to have a brown and white reticulate pattern that is not found in Baeolidia moebii. [4]

<i>Baeolidia moebii</i> species of mollusc

Baeolidia moebii is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Aeolidiidae.

Cerata anatomical structures found in nudibranch sea slugs

Ceras, plural Cerata, are anatomical structures found externally in nudibranch sea slugs, especially in aeolid nudibranchs, marine opisthobranch gastropod mollusks in the clade Aeolidida. The singular of cerata is ceras, which comes from the Greek word "κέρας", meaning "horn", a reference to the shape of these structures.

Related Research Articles

William B. Rudman, usually known as Bill Rudman, is a malacologist from New Zealand and Australia. In particular he studies sea slugs, opisthobranch gastropod molluscs, and has named many species of nudibranchs.

<i>Spurilla</i> genus of molluscs

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

Anteaeolidiella cacaotica is a species of sea slug, an aeolid nudibranch. It is a shell-less marine gastropod mollusc in the family Aeolidiidae.

<i>Anteaeolidiella chromosoma</i> species of mollusc

Anteaeolidiella chromosoma, common name colorful aeolid, is a species of sea slug, an aeolid nudibranch. It is a shell-less marine gastropod mollusc in the family Aeolidiidae.

<i>Anteaeolidiella oliviae</i> species of mollusc

Anteaeolidiella oliviae, is a species of sea slug, an aeolid nudibranch. It is a marine gastropod mollusc in the family Aeolidiidae.

Baeolidia gracilis is a species of sea slugs, an aeolid nudibranch. It is a marine gastropod mollusc in the family Aeolidiidae found in the Philippines.

<i>Bulbaeolidia alba</i> species of mollusc

Bulbaeolidia alba is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Aeolidiidae.

Cerberilla affinis is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Aeolidiidae. It was described as a variety by Bergh, 1888 but elevated to species status by Burn, 1966.

<i>Cerberilla africana</i> species of mollusc

Cerberilla africana is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Aeolidiidae.

Cerberilla annulata is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Aeolidiidae.

Cerberilla albopunctata is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Aeolidiidae.

<i>Baeolidia ransoni</i> species of Gastropoda

Baeolidia ransoni is a species of sea slug, an aeolid nudibranch. It is a marine gastropod mollusc in the family Aeolidiidae.

<i>Baeolidia salaamica</i> species of Gastropoda

Baeolidia salaamica, is a species of sea slug, an aeolid nudibranch. It is a marine gastropod mollusc in the family Aeolidiidae.

Baeolidia harrietae is a species of sea slug, an aeolid nudibranch. It is a marine gastropod mollusc in the family Aeolidiidae.

Baeolidia rieae is a species of sea slug, an aeolid nudibranch. It is a marine gastropod mollusc in the family Aeolidiidae.

Baeolidia harrietae is a species of sea slug, an aeolid nudibranch. It is a marine gastropod mollusc in the family Aeolidiidae.

Baeolidia macleayi is a species of sea slug, an aeolid nudibranch. It is a marine gastropod mollusc in the family Aeolidiidae.

Baeolidia scottjohnsoni, is a species of sea slug, an aeolid nudibranch. It is a marine gastropod mollusc in the family Aeolidiidae found in the Marshall Islands and Hawaii, United States.

References

  1. ↑ Rudman W. B. (1982). "The taxonomy and biology of further aeolidacean and arminacean nudibranch molluscs with symbiotic zooxanthellae". Zoological Journal of the Linnean Society 74(2): 147-196. doi:10.1111/j.1096-3642.1982.tb01146.x.
  2. ↑ Rosenberg, G.; Bouchet, P. (2014). Baeolidia australis (Rudman, 1982). Accessed through: World Register of Marine Species on 2015-02-24.
  3. ↑ Rudman, W.B., 1999 (July 21) Spurilla australis Rudman, 1982. [In] Sea Slug Forum. Australian Museum, Sydney.
  4. ↑ Carmona L., Pola M., Gosliner T.M. & Cervera J.L. 2014. Review of Baeolidia, the largest genus of Aeolidiidae (Mollusca: Nudibranchia), with the description of five new species. Zootaxa, 3802 (4): 477–514.
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