Longfin

The longfins, also known as roundheads or spiny basslets, are a family, Plesiopidae, which were formerly placed in the order Perciformes or considered indeterminate percomorphs, but are now considered basal blenniiforms.^[2][3] They are elongated fishes, found in the Indian Ocean and western Pacific Ocean.

Longfin
Crimsontip longfin, (Plesiops coeruleolineatus)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Clade:	Percomorpha
Clade:	Ovalentaria
Order:	Blenniiformes
Family:	Plesiopidae Günther, 1861[1]
Subfamilies
Plesiopinae Günther, 1861 Acanthoclininae Günther, 1861 See text for genera.
Synonyms
Acanthoclinidae

Classification

Comet, Calloplesiops altivelis

Eastern blue devil, Paraplesiops bleekeri

In some classifications, the genus Notograptus is split in its own family, Notograptidae, but FishBase is followed here. There are two subfamilies within the Plesiopidae and the genera are as follows:^[2]

• Subfamily Acanthoclininae Günther, 1861
  • Genus Acanthoclinus Jenyns, 1841
  • Genus Acanthoplesiops Regan, 1912
  • Genus Beliops Hardy, 1985
  • Genus Belonepterygion McCulloch, 1915
  • Genus Notograptus Günther, 1867
• Subfamily Plesiopinae Günther, 1861
  • Genus Assessor Whitley, 1935
  • Genus Calloplesiops Fowler and Bean, 1930
  • Genus Fraudella Whitley, 1935
  • Genus Paraplesiops Bleeker, 1875
  • Genus Plesiops Oken, 1817
  • Genus Steeneichthys Gerald R. Allen and Randall, 1985
  • Genus Trachinops Günther, 1861