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In addition, deep-sea dragon fishes evolved retinas with far-red emitting photophores and rhodopsins. [14] These far-red emitting properties produce long-wave bioluminescence greater than 650 nm. This unique evolutionary trait was first seen around 15.4 Ma and had a single evolutionary origin within the stomiidae family. [14]
Stomias boa, also known as the boa dragonfish, scaly dragonfish, dragon-boa or boa scaly dragonfish, is a species of deep-sea fish in the family Stomiidae. [ 4 ] [ 5 ] [ 6 ] [ 3 ] [ 7 ] It is found at great depths worldwide in tropical to temperate oceans but is absent from the northern Pacific and northwest Atlantic Oceans .
Idiacanthus atlanticus, the black dragonfish, is a barbeled dragonfish of the family Stomiidae, found circumglobally in southern subtropical and temperate oceans between latitudes 25°S and 60°S, at depths down to 2,000 metres (6,600 ft).
Glaucus atlanticus (common names include the blue sea dragon, sea swallow, blue angel, ... Occasionally, individuals attack and eat other individuals in captivity.
The diet of the arapaima consists of fish, crustaceans, fruits, seeds, insects, and small land animals that walk near the shore. [18] The fish is an air breather, using its labyrinth organ, which is rich in blood vessels and opens into the fish's mouth, [19] an advantage in oxygen-deprived water that is often found in the Amazon River.
The young are independent at birth, beginning to eat shortly after. [8] Common seadragons take about 28 months to reach sexual maturity, and may live for up to six years. [9] Common Seadragon. Mating in captivity is relatively rare since researchers have yet to understand what biological or environmental factors trigger them to reproduce.
Stomiiformes / ˈ s t ɒ m i. ɪ f ɔːr m iː z / is an order of deep-sea ray-finned fishes of very diverse morphology.It includes, for example, dragonfishes, lightfishes (Gonostomatidae and Phosichthyidae), loosejaws, marine hatchetfishes and viperfishes.
Barbeled dragonfish, a small bioluminescent deep-sea fish of the family Stomiidae; Several species of fish of the family Pegasidae; Violet goby, an eel-like brackish-water fish; Polypterus senegalus, a fish of the family Polypteridae; Asian arowana, a bonytongue fish of the family Osteoglossidae