''Baeolidia palythoae'' is a

species 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 s ...

sea slug 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 gastropods, i.e. they are sea snails (marine gastropod mollusks) that over evolutionary t ...

, an aeolid nudibranch. It is a

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

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 ...

mollusc 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 esti ...

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 ...

Aeolidiidae Aeolidiidae, a family of aeolid nudibranchs, are a family of sea slugs, shell-less marine gastropod molluscs.Bouchet, P. (2014)''Aeolidiidae'' Gray, 1827.Accessed through: World Register of Marine Species on 2014-10-24 Most, or perhaps all, mem ...

found in South Africa.Rosenberg, G.; Bouchet, P. (2014)
''Baeolidia palythoae'' (Gosliner, 1985).
Accessed through: World Register of Marine Species on 2015-02-24.

Distribution

The

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several ...

of this species was collected in the

intertidal zone The intertidal zone, also known as the foreshore, is the area above water level at low tide and underwater at high tide (in other words, the area within the tidal range). This area can include several types of habitats with various species o ...

at Umgazana, south of

Port St. Johns Port St. Johns (or Port Saint Johns) is a town of about 6,500 people on the Wild Coast in the Eastern Cape province of South Africa. It is situated at the mouth of the Umzimvubu River, northeast of East London and east of Mthatha. Port St. Jo ...

Eastern Cape The Eastern Cape is one of the provinces of South Africa. Its capital is Bhisho, but its two largest cities are East London and Gqeberha. The second largest province in the country (at 168,966 km2) after Northern Cape, it was formed in ...

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...

. Additional specimens were collected at localities on the coast of South Africa from Umgazana to Jesser Point,

Sodwana Bay National Park Sodwana Bay National Park, is a park situated on the north eastern coast of KwaZulu-Natal, South Africa; it is located within the iSimangaliso Wetland Park World Heritage Site 20 minutes away from local town Mbazwana. This park is known for spor ...

, Natal.

Description

The body of ''Baeolidia palythoae'' is translucent yellowish. The yellow colour is overlaid with a reticulate brown pattern, which varies in density. The tip of each ceras bears a small opaque white spot. Ventrally and slightly eccentric to the apex is a larger spot of dark brown pigment. This pattern of colouration did not vary in any of the numerous specimens of this species observed.

Ecology

''Baeolidia palythoae'' feeds on colonial sea anemones of the genus '' Palythoa''.

References

{{Taxonbar, from=Q20685985 Endemic fauna of South Africa Aeolidiidae Gastropods described in 1985