''Onuxodon'' is an

Indo-Pacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

pearlfish Pearlfish are marine fish in the ray-finned fish family Carapidae. Pearlfishes inhabit the tropical waters of the Atlantic, Indian, and Pacific Oceans at depths to , along oceanic shelves and slopes. They are slender, elongated fish with no s ...

es from the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Carapidae. The generic name is derived from the

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

''onyx'' meaning "claw" and ''odon'' meaning "tooth", referring to the sharp fang like teeth of ''Onuxodon parvibrachium''. Species in this genus are distributed from South Africa to

Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only ...

. They live

commensal Commensalism is a long-term biological interaction ( symbiosis) in which members of one species gain benefits while those of the other species neither benefit nor are harmed. This is in contrast with mutualism, in which both organisms benefit fr ...

ly with molluscs. The three currently recognized species are: * ''

Onuxodon fowleri ''Onuxodon fowleri'' is a species of pearlfish first described by Smith, 1955. ''Onuxodon fowleri'' is part of the genus Onuxodon and the subfamily Carapinae Carapinae is a subfamily of pearlfishes, of the family Carapidae. The subfamily consi ...

'' ( J. L. B. Smith, 1955) (Fowler's pearlfish) * ''

Onuxodon margaritiferae ''Onuxodon'' is an Indo-Pacific genus of pearlfishes from the family Carapidae. The generic name is derived from the Greek ''onyx'' meaning "claw" and ''odon'' meaning "tooth", referring to the sharp fang like teeth of ''Onuxodon parvibrachium' ...

'' ( Rendahl, 1921) (bivalve pearlfish) * ''

Onuxodon parvibrachium ''Onuxodon'' is an Indo-Pacific genus of pearlfishes from the family Carapidae. The generic name is derived from the Greek ''onyx'' meaning "claw" and ''odon'' meaning "tooth", referring to the sharp fang like teeth of ''Onuxodon parvibrachium' ...

'' ( Fowler, 1927) (oyster pearlfish)

References

Carapidae {{Ophidiiformes-stub