Hypselodoris bilineata
Encyclopedia
Hypselodoris bilineata is a species
of colourful sea slug
or dorid nudibranch
, a marine
gastropod mollusk in the family
Chromodorididae
.
This species can reach a total length of at least 30 mm.
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
of colourful 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...
or dorid 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...
, a 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 mollusk 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...
Chromodorididae
Chromodorididae
Chromodorididae are a taxonomic family of medium-sized to large, colorful, sea slugs; dorid nudibranchs in the superfamily Doridoidea. These are marine gastropod mollusks....
.
Distribution
This nudibranch is known from the Eastern Atlantic Ocean and the Western Mediterranean.Description
Hypselodoris bilineata has a blue body with an orange-lined mantle. The upper dorsum and body have one or two orange longitudinal lines running down the length of the animal.The gills and rhinophores are black, edged with orange.This species can reach a total length of at least 30 mm.