Dinematichthyini is a

tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide usage of the term in English language, English is in the discipline of anthropology. This definition is contested, in p ...

viviparous brotula The viviparous brotulas form a family, the Bythitidae, of ophidiiform fishes. They are known as viviparous brotulas as they generally viviparity, bear live young, although there are indications that some species (at least ''Didymothallus crinicep ...

s, which is conventionally placed within the

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...

Brosmophycinae Brosmophycinae is a subfamily of the viviparous brotulas. They are divided from the subfamily Bythitinae by having the dorsal fin, caudal fin and anal fin all separate whereas they are joined in the Bythitinae. It is divided into the tribes Din ...

. They are differentiated from the other tribe within that subfamily, the

, by having a single pair of

ossified Ossification (also called osteogenesis or bone mineralization) in bone remodeling is the process of laying down new bone material by Cell (biology), cells named osteoblasts. It is synonymous with bone tissue formation. There are two processes ...

genital claspers, having an absence or greatly reduced scales on the head and having the posterior end of the

maxillary bone The maxilla (plural: ''maxillae'' ) in vertebrates is the upper fixed (not fixed in Neopterygii) bone of the jaw formed from the fusion of two maxillary bones. In humans, the upper jaw includes the hard palate in the front of the mouth. The tw ...

showing a small amount of vertical expansion. A review of the viviparous brotulas carried out in 2016 elevated the tribe to a

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

, the Dinematichthyidae. Abstract

Genera

The following genera are included in the tribe Dinematichthyini: * ''

Alionematichthys ''Alionematichthys'' is a genus of viviparous brotula The viviparous brotulas form a family, the Bythitidae, of ophidiiform fishes. They are known as viviparous brotulas as they generally viviparity, bear live young, although there are indicat ...

'' * ''

Beaglichthys ''Beaglichthys'' is a genus of viviparous brotula The viviparous brotulas form a family, the Bythitidae, of ophidiiform fishes. They are known as viviparous brotulas as they generally viviparity, bear live young, although there are indications ...

'' * ''

Brosmolus The longtail cusk (''Brosmolus longicaudus'') is a species of viviparous brotula native to the reefs around Australia. This species grows to a length of SL. It is a benthic species likely living in inshore waters around the Indio-Pacific with ...

'' * ''

Brotulinella The Taiwan coral-brotula (''Brotulinella taiwanensis'') is a species of viviparous brotula, the only known member of its genus, found mostly in the surge zone of the waters around Taiwan and the Philippines The Philippines (; fil, Pilip ...

'' * ''

Dactylosurculus The Southern pygmy blindfish (''Dactylosurculus gomoni'') is a species of viviparous brotula, the only known member of its genus, found in the waters of the Indian Ocean off the coast of western Australia. This species grows to a length of SL. ...

'' * ''

Dermatopsis ''Dermatopsis'' is a genus of viviparous brotula The viviparous brotulas form a family, the Bythitidae, of ophidiiform fishes. They are known as viviparous brotulas as they generally viviparity, bear live young, although there are indications ...

'' * ''

Dermatopsoides ''Dermatopsoides'' is a genus of viviparous brotulas. Species There are currently four recognized species in this genus: * '' Dermatopsoides andersoni'' Møller & Schwarzhans, 2006 (Anderson's mudbrotula) * '' Dermatopsoides kasougae'' (J. L. ...

'' * '' Diancistrus'' * ''

Didymothallus ''Didymothallus'' is a genus of viviparous brotulas found in the Indian and western Pacific Ocean 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 Sou ...

'' * ''

Dinematichthys ''Dinematichthys'' is a genus of viviparous brotulas. Its name comes from Greek, meaning ''two-filamented fish'' (''di'' means two, ''nema'' filament and ''ichthys'' fish). Species There are currently two recognized species in this genus: * ''Di ...

'' * ''

Dipulus ''Dipulus'' is a genus of viviparous brotulas. Species There are currently four recognized species in this genus: * '' Dipulus caecus'' Waite, 1905 (Orange eelpout) * '' Dipulus hutchinsi'' Møller & Schwarzhans, 2006 (Hutchin's mudbrotula) * ...

'' * ''

Gunterichthys ''Gunterichthys'' is a genus of viviparous brotula The viviparous brotulas form a family, the Bythitidae, of ophidiiform fishes. They are known as viviparous brotulas as they generally viviparity, bear live young, although there are indication ...

'' * ''

Lapitaichthys ''Lapitaichthys frickei'' is a species of viviparous brotula found on reefs around New Caledonia. This species grows to a length of SL. This species is the only known member of its genus. The specific name refers to the ichthyologist Ronald ...

'' * '' Majungaichthys'' * '' Mascarenichthys'' * ''

Monothrix The Littoral cusk (''Monothrix polylepis'') is a species of viviparous brotula known from shallow reefs off the coast of eastern Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comp ...

'' * '' Nielsenichthys'' * ''

Ogilbia ''Ogilbia'' is a genus of viviparous brotulas. The generic name honours the Australian naturalist James Douglas Ogilby (1853-1925), for his contribution to the knowledge of the fishes of Australia. Species There are currently 18 recognized spec ...

'' * '' Ogilbichthys'' * ''

Paradiancistrus ''Paradiancistrus'' is a genus of viviparous brotula The viviparous brotulas form a family, the Bythitidae, of ophidiiform fishes. They are known as viviparous brotulas as they generally viviparity, bear live young, although there are indicati ...

'' * '' Porocephalichthys'' * ''

Typhliasina The Mexican blind brotula (''Typhliasina pearsei'') is a species of viviparous brotula endemic to Mexico, where it is found in sinkholes and caves. It is known as ''sak kay'' in Mayan and ''dama blanca ciega'' in Spanish. This cavefish grows to ...

'' * '' Ungusurculus'' * '' Zephyrichthys''

References

{{Taxonbar, from=Q21220527 Bythitidae Viviparous fish Fish tribes