''Callionymus izuensis'', the Izu dragonet, is a species of

dragonet Dragonets are small, percomorph, marine fish of the diverse family Callionymidae (from the Greek ''kallis'', "beautiful" and ', "name") found mainly in the tropical waters of the western Indo-Pacific. They are benthic organisms, spending most ...

which is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the waters around the

Izu Islands The are a group of volcanic islands stretching south and east from the Izu Peninsula of Honshū, Japan. Administratively, they form two towns and six villages; all part of Tokyo Prefecture. The largest is Izu Ōshima, usually called simply Ō ...

of Japan. It is found at depths of over substrates consisting of coarse sand, although sometimes coral rubble and broken shells may form part of the habitat. It was originally described as a subspecies of ''

Callionymus persicus ''Callionymus persicus'', the Persian dragonet, is a species of dragonet native to the western Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It ...

'' from the western Indian Ocean and has also been placed in the genus ''

Calliurichthys ''Calliurichthys'' is a subgenus of ''Callionymus'', a genus dragonets, native to the western Pacific Ocean. Some authorities consider it to be a valid genus. Species There are currently two recognized species in this subgenus: * ''Callionymus i ...

'' by some authorities.

References

{{Taxonbar, from=Q8255641 I Fish described in 1993