Thaumatichthyidae is a small family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 deep-sea anglerfish

Anglerfish

Anglerfishes are members of the teleost order Lophiiformes . They are bony fishes named for their characteristic mode of predation, wherein a fleshy growth from the fish's head acts as a lure; this is considered analogous to angling.Some anglerfishes are pelagic , while others are benthic...

es, containing two genera

Genera

Genera is a commercial operating system and development environment for Lisp machines developed by Symbolics. It is essentially a fork of an earlier operating system originating on the MIT AI Lab's Lisp machines which Symbolics had used in common with LMI and Texas Instruments...

 and eight species found in all oceans. They are commonly known as wonderfish (a literal translation of Thaumatichthys

Thaumatichthys

Thaumatichthys is a genus of deep-sea anglerfish in the family Thaumatichthyidae, with three known species. Its scientific name means "wonder-fish" in Greek; oceanographer Anton Bruun described these fishes as "altogether one of the oddest creatures in the teeming variety of the fish world." In...

) or wolftrap anglers, because of their distinctive upper jaws with movable premaxillaries that can be lowered to form a cage-like trap around the much shorter lower jaw. They are related to (and were formerly placed within) the Oneirodidae

Oneirodidae

The dreamers are a family, Oneirodidae, of deep-sea anglerfishes in the order Lophiiformes. They are the largest and most diverse group of deep-sea anglerfish, and also the least well-known with several genera represented by only one, two, or three female specimens. They are found in deep,...

.

Species

• Genus Lasiognathus
  Lasiognathus
  Lasiognathus is a genus of deep-sea anglerfish in the family Thaumatichthyidae, with five species known from the Atlantic and Pacific Oceans...
  
  
  • Lasiognathus amphirhamphus Pietsch
    Theodore W. Pietsch
    Theodore Wells Pietsch III is an American systematist and evolutionary biologist made famous by his studies of anglerfishes. Pietsch has described 65 species and 12 genera of fishes and published numerous scientific papers focusing on the relationships, evolutionary history, and functional...
    
    , 2005.
  • Lasiognathus beebei Regan & Trewavas, 1932.
  • Lasiognathus intermedius Bertelsen & Pietsch
    Theodore W. Pietsch
    Theodore Wells Pietsch III is an American systematist and evolutionary biologist made famous by his studies of anglerfishes. Pietsch has described 65 species and 12 genera of fishes and published numerous scientific papers focusing on the relationships, evolutionary history, and functional...
    
    , 1996.
  • Lasiognathus saccostoma Regan, 1925.
  • Lasiognathus waltoni Nolan & Rosenblatt, 1975.
• Genus Thaumatichthys
  Thaumatichthys
  Thaumatichthys is a genus of deep-sea anglerfish in the family Thaumatichthyidae, with three known species. Its scientific name means "wonder-fish" in Greek; oceanographer Anton Bruun described these fishes as "altogether one of the oddest creatures in the teeming variety of the fish world." In...
  
  
  • Thaumatichthys axeli
    Thaumatichthys axeli
    Thaumatichthys axeli is a bottom-dwelling deep-sea anglerfish of the family Thaumatichthys. Thaumatichthys axeli lives at a depth of around 3,600 meters , deeper than any other member of the family Thaumatichthys. As with other members of the family, they possess a distinctive forked light organ...
    
    (Bruun, 1953).
  • Thaumatichthys binghami Parr, 1927.
  • Thaumatichthys pagidostomus Smith & Radcliffe, 1912.