''Ecsenius oculus'', known commonly in

Micronesia Micronesia (, ) is a subregion of Oceania, consisting of approximately 2,000 small islands in the Northwestern Pacific Ocean. It has a close shared cultural history with three other island regions: Maritime Southeast Asia to the west, Poly ...

as the ocular blenny and as the coral blenny on

Christmas Island Christmas Island, officially the Territory of Christmas Island, is an States and territories of Australia#External territories, Australian external territory in the Indian Ocean comprising the island of the same name. It is about south o ...

, is a species of

combtooth blenny Combtooth blennies are blenny, blenniiformids; Percomorpha, percomorph marine fish of the family Blenniidae, part of the Order (biology), order Blenniiformes. They are the largest family of blennies with around 401 known species in 58 genera. Com ...

in the genus ''

Ecsenius ''Ecsenius'' is a large genus of fish in the family Blenniidae. Several species, including ''Ecsenius midas'', the Midas blenny, and ''Ecsenius bicolor'', the bicolor blenny, are commonly sold at aquarium stores as pets. Species There are curren ...

''. It is found in

coral reef A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in group ...

s in the western

Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is bounded by the cont ...

ocean. It can reach a maximum length of 7 centimetres. Blennies in this species feed primarily off of plants, including

benthic The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from the Ancient Greek word (), meaning "the depths". ...

algae Algae ( , ; : alga ) is an informal term for any organisms of a large and diverse group of photosynthesis, photosynthetic organisms that are not plants, and includes species from multiple distinct clades. Such organisms range from unicellular ...

and weeds, and are commercial

aquarium An aquarium (: aquariums or aquaria) is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. fishkeeping, Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquati ...

fish.

References

* Springer, V. G. 1971 (30 Mar.) ''Revision of the fish genus Ecsenius (Blenniidae, Blenniinae, Salariini).'' Smithsonian Contributions to Zoology No. 72: 1-74. oculus Fish described in 1971 Taxa named by Victor G. Springer {{Blenniidae-stub