Stomiiformes

Stomiiformes is an order of mostly deep-sea ray-finned fishes that includes dragonfishes, hatchetfishes, and loosejaws. Many species have light-producing organs and adaptations for feeding in dark waters.

Teleostei: Teleostei is the largest infraclass of ray-finned fishes, characterized by a highly mobile jaw and a bony skeleton. Stomiiformes belongs within this immense radiation of modern bony fishes.
Bioluminescence: Bioluminescence is light produced by living organisms through chemical reactions or symbiosis with light-producing microbes. Many stomiiforms use photophores to emit light in dark ocean layers.
Marine food web: A marine food web is the network of feeding relationships among organisms in ocean ecosystems. Stomiiforms consume zooplankton and smaller fishes, while larger predators eat them.
Carl Linnaeus: Carl Linnaeus was a Swedish naturalist who established the system of binomial nomenclature used in modern biology. His naming system underlies the standardized classification of Stomiiformes and its constituent species.
Viperfish: Viperfish are deep-sea predatory fishes in the genus Chauliodus, known for long fangs and hinged jaws. They exemplify the conspicuous teeth and ambush predation found among stomiiforms.
Actinopterygii: Actinopterygii is the class of fishes whose fins are supported by slender bony or cartilaginous rays. This broader fish group contains the teleost lineage that includes Stomiiformes.
Photophore: A photophore is a light-producing organ found in certain animals, especially marine fishes and cephalopods. Rows of photophores are a distinctive feature of many stomiiform bodies.
Biological pump: The biological pump is the transport of carbon from surface waters to the deep ocean by sinking material and migrating organisms. Vertical migrations by midwater fishes can move carbon below the surface.
Fish taxonomy: Fish taxonomy is the scientific classification of fishes into named groups based on shared traits and evolutionary relationships. Stomiiformes' boundaries and internal families are products of this classification.
Black dragonfish: The black dragonfish, Idiacanthus atlanticus, is a deep-sea stomiid with an elongated body and bioluminescent barbel. Its barbel and body form illustrate specialized prey-attraction strategies in Stomiiformes.

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