Electrolux addisoni 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 electric ray

Electric ray

The electric rays are a group of rays, flattened cartilaginous fish with enlarged pectoral fins, comprising the order Torpediniformes. They are known for being capable of producing an electric discharge, ranging from as little as 8 volts up to 220 volts depending on species, used to stun prey and...

 and the only member of the genus

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...

 Electrolux. It lives on reef

Reef

In nautical terminology, a reef is a rock, sandbar, or other feature lying beneath the surface of the water ....

s feeding on polychaete worms and small crustacean

Crustacean

Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...

s, it has only been seen by divers to feed during the daytime. It is endemic to the coast of South Africa

South Africa

The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

. It was first recorded in 1984 but was not described

Biological classification

Biological classification, or scientific classification in biology, is a method to group and categorize organisms by biological type, such as genus or species. Biological classification is part of scientific taxonomy....

 until 2007. It was ranked as the number one newly described species of 2007 by the International Institute for Species Exploration

International Institute for Species Exploration

The International Institute for Species Exploration is a research institute hosted by Arizona State University, dedicated to improving taxonomical exploration and the cataloguing of new species of flora and fauna. It is located in Tempe, Arizona, in the United States of America. The institute's...

.
Electrolux addisoni is easily distinguished from other narcinids by its striking colour pattern consisting of a dark brown dorsal surface of the disc with numerous small pale yellow spots and a series of concentric black stripes.