Cratena
Encyclopedia
Cratena is a genus
of sea slug
s, aeolid
nudibranch
s, marine
gastropod molluscs in the family
Facelinidae
.
Cratena is the type species
of the subfamily Crateninae.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of sea slug
Slug
Slug is a common name that is normally applied to any gastropod mollusc that lacks a shell, has a very reduced shell, or has a small internal shell...
s, aeolid
Aeolidioidea
Aeolidioidea is a superfamily of small sea slugs, the aeolid nudibranchs. They are gastropod mollusks.-2005 taxonomy :The superfamily Aeolidioidea consists of the following four families :* Aeolidiidae Gray, 1827* Facelinidae Bergh, 1889* Glaucidae Gray, 1827* Piseinotecidae Edmunds, 1970Synonyms...
nudibranch
Nudibranch
A nudibranch is a member of what is now a taxonomic clade, and what was previously a suborder, of soft-bodied, marine gastropod mollusks which shed their shell after their larval stage. They are noted for their often extraordinary colors and striking forms...
s, marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...
gastropod molluscs in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Facelinidae
Facelinidae
Facelinidae is a taxonomic family of colorful sea slugs. These are specifically aeolid nudibranchs. They are marine gastropod molluscs.- 2005 taxonomy :...
.
Cratena is the type species
Type species
In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...
of the subfamily Crateninae.
Species
Species within the genus Cratena include:- Cratena affinis (Baba, 1949)
- Cratena capensis Barnard, 1927 - orange-eyed nudibranchOrange-eyed nudibranchThe orange-eyed nudibranch, scientific name Cratena capensis, is a species of sea slug, specifically an aeolid nudibranch. It is a marine gastropod mollusc in the family Facelinidae.-Distribution:...
- Cratena kaoruae Marcus, 1957
- Cratena lineata Eliot, 1905
- Cratena peregrina (Gmelin, 1791)
- Cratena pilata (Gould, 1870)
- Cratena simba Edmunds, 1970