''Melibe rosea'', the cowled nudibranch, 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 ...
of
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 ...
, a
dendronotid nudibranch
Nudibranchs () are a group of soft-bodied marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to matc ...
, 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 ...
Tethydidae
Tethydidae is a family of dendronotid nudibranch gastropod mollusks in the superfamily Tritonioidea.Picton, B.; Bouchet, P. (2017). Tethydidae Rafinesque, 1815. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http ...
.
This species is only found in South Africa.
Distribution
This species is
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to the
South African __NOTOC__
South African may relate to:
* The nation of South Africa
* South African Airways
* South African English
* South African people
* Languages of South Africa
* Southern Africa
Southern Africa is the southernmost subregion of the Afric ...
coast and is found from Port Nolloth to Port Alfred, usually intertidally, but occasionally to 10 m.
Description
The cowled nudibranch is a white to pinky-red nudibranch distinguished by its large extendable hood. Knobbly paired cerata extend down the margins of the smooth notum. The notum and cerata may have opaque white encrustations. It can grow as large as 50 mm in total length.
[ZSILAVECZ, G. 2007. ''Nudibranchs of the Cape Peninsula and False Bay''. ]
Ecology
The cowled nudibranch feeds on small
crustacea
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean gro ...
ns, capturing them with its oral hood.
References
{{Taxonbar, from=Q5179740
Tethydidae
Gastropods described in 1829