Exyrias akihito

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Exyrias akihito
Filamented goby (Exyrias akihito) (49604797968).jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gobiiformes
Family: Gobiidae
Genus: Exyrias
Species:
E. akihito
Binomial name
Exyrias akihito

Exyrias akihito is a species of marine goby. Since the recent description of this species it has been found to have a wide distribution in the western Pacific including the Great Barrier Reef, New Guinea, Indonesia, the Philippines and the Yaeyama Islands, Japan. One individual was photographed in Palau, and on January 13, 2005 one was caught in the lagoon of Majuro Atoll in the Marshall Islands. This animal had only 9 soft rays in its dorsal fin instead of the normal 10, a congenital abnormality known to occasionally occur in gobies and other fish. [1]

Contents

Members of this species used to be assigned to the widespread species Exyrias belissimus but it differs from that species in a number of respects, notably in the very long dorsal fin spines and the paler coloration with numerous yellow or orange spots on all parts. It also differs in habitat preference: E. belissimus is a bottom-dwelling species of turbid waters while E. akihito prefers clear water and is usually found on coral rubble or sandy patches near coral reefs at a depth of 10–43 m. [1]

The species was named in honour of Emperor Akihito of Japan, who is a keen ichthyologist with a special interest in gobies. Type material for the new species was in part procured by the Imperial Household Agency's Biological Laboratory. [2]

See also

Footnotes

  1. 1 2 Allen & Randall (2005), Randall (2008)
  2. Allen & Randall (2005)

Related Research Articles

Gobiidae Family of fishes

Gobiidae is a family of bony fish in the order Gobiiformes, one of the largest fish families comprising more than 2,000 species in more than 200 genera, sometimes referred to as the "true gobies". Most of them are relatively small, typically less than 10 cm (3.9 in) in length. The Gobiidae includes some of the smallest vertebrates in the world, such as Trimmatom nanus and Pandaka pygmaea, Trimmatom nanus are under 1 cm long when fully grown, then Pandaka pygmaea standard length are 9mm (0.35 in),maximum known standard length are 11 mm (0.43 in). Some large gobies can reach over 30 cm (0.98 ft) in length, but that is exceptional. Generally, they are benthic, or bottom-dwellers. Although few are important as food for humans, they are of great significance as prey species for commercially important fish such as cod, haddock, sea bass, and flatfish. Several gobiids are also of interest as aquarium fish, such as the dartfish of the genus Ptereleotris. Phylogenetic relationships of gobiids have been studied using molecular data.

<i>Exyrias</i> Genus of fishes

Exyrias is a genus of gobies mostly native to marine waters of the Indian Ocean and the western Pacific Ocean with one freshwater species (E. volcanus) known from the Philippines.

<i>Eviota</i> Genus of fishes

Eviota is a genus of fish in the family Gobiidae, commonly as dwarfgobies found in the Indo-Pacific region, where it is distributed from Japan to Australia and from Africa to Pitcairn Island. Species are mainly associated with coral reefs. Many of these fish are short-lived, with life cycles as brief as 3.5 weeks in the tropics. Some species are hermaphrodites and some representatives live symbiotically among the tentacles of the mushroom coral.

Steinitz prawn goby Species of fish

Amblyeleotris steinitzi, Steinitz' prawn goby or simply Steinitz' goby, is a species of small fish in the family Gobiidae. It lives in association with an alpheid shrimp and is found from the Red Sea through the Indian Ocean to the western Pacific Ocean.

<i>Elacatinus</i> Genus of fishes

Elacatinus is a genus of small marine gobies, often known collectively as the neon gobies. Although only one species, E. oceanops, is technically the "neon goby," because of their similar appearance, other members of the genus are generally labeled neon gobies, as well. Except for a single East Pacific species, all reside in warmer parts of the West Atlantic, including the Caribbean and Gulf of Mexico. They are known for engaging in symbiosis with other marine creatures by providing them cleaning service that consists of getting rid of ectoparasites on their bodies. In return, Elacatinus species obtain their primary source of food, ectoparasites.

Gobiiformes Order of fishes

The Gobiiformes are an order of fish that includes the gobies and their relatives. The order, which was previously considered a suborder of Perciformes, is made up of about 2,211 species that are divided between seven families. Phylogenetic relationships of the Gobiiformes have been elucidated using molecular data. Gobiiforms are primarily small species that live in marine water, but roughly 10% of these species inhabit fresh water. This order is composed chiefly of benthic or burrowing species; like many other benthic fishes, most gobiiforms do not have a gas bladder or any other means of controlling their buoyancy in water, so they must spend most of their time on or near the bottom. Gobiiformes means "Goby-like".

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Randalls prawn goby Species of fish

Amblyeleotris randalli, Randall's prawn goby, is a marine benthic species of goby native to tropical reefs of the central Indo-Pacific. This species can also be found in the aquarium trade.

<i>Oplopomus oplopomus</i> Species of fish

Oplopomus oplopomus, commonly known as the spinecheek goby, is a species of goby native to the Indo-Pacific region. They can grow to a maximum length of 10 centimetres (3.9 in). They inhabit coral reefs.

<i>Rhinogobiops</i> Genus of fishes

Rhinogobiops nicholsii, the blackeye goby, is a species of true goby in the family Gobiidae. It is the sole species classified under the genus Rhinogobiops. They are common inhabitants of coral reefs and rocky habitats along the Eastern Pacific Ocean coasts of Mexico, the United States, and Canada, although they are hardly noticed, as they often rest motionless near their shelters. Other common names for the species include bluespot goby and crested goby.

<i>Bryaninops yongei</i> Species of fish

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<i>Valenciennea helsdingenii</i> Species of fish

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Sueviota is a genus of fish in the family Gobiidae native to the Indian and Pacific Ocean.

<i>Scorpaenopsis diabolus</i> Species of fish

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Morrison's dragonet is a species of dragonet. It is native to the southwest Pacific Ocean from Japan to Australia ant eastwards to the Marshall Islands and Fiji. The specific name honours J.P.E. Morrison (1906-1983), the U.S. malacologist who was curator of molluscs at United States National Museum and who spent the summers of 1947 and 1948 at Bikini Atoll.

<i>Trimma nasa</i> Species of fish

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Trimma tevegae, commonly known as the bluestripe pygmygoby or blue-striped cave goby among other names, is a species of goby from the western Pacific. They are small fish, averaging at 2 cm (0.79 in), orange-brown with white undersides in life, with characteristic iridescent blue or lavender stripes on the sides and on top of the body. They are usually found in large schools in the sloping or vertical drop-offs at coral reef edges. They are sometimes caught for the aquarium trade, and are also known by hobbyists under the name blue line flagtail goby. The species is named in honor of the schooner Te Vega.

<i>Eviota guttata</i> Species of fish

Eviota guttata, the spotted dwarfgoby, is a species of ray-finned fish from the family Gobiidae, the "true gobies". It is found in the western Indian Ocean.

<i>Eviota sebreei</i> Species of fish

Eviota sebreei, common name Sebree's pygmy goby or striped dwarfgoby, is a species of fishes belonging to the family Gobiidae.

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