Armina semperi is a species

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 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...

, a 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...

 Arminidae

Arminidae

Arminidae is a family of sea slugs, marine gastropod mollusks in the superfamily Arminoidea.- Taxonomy :The Arminidae family is classified within the clade Cladobranchia, itself belonging to the clade Nudibranchia .This family has been renamed several times...

.

Description

This species can be identified by the thin black and white ridges that run longitudinally down its back. The animal also has a characteristic light-blue foot rimmed in yellow-orange, with a matching oral veil.

Members of this species are generally between 2-6 centimeters long, with narrow bodies.

Life habits

Individuals of Armina semperi are more likely to be active at night.

They generally eat soft corals and sea pens.

A picture of Armina semperi can be viewed on the online "Sea Slug Forum" website.

External links

• SeaSlug Forum, image of live specimen at: http://www.seaslugforum.net/factsheet.cfm?base=armisemp
• Taxonomy at: http://www.medslugs.de/E/taxonomy/Armina_semperi.htm