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Myctophiformes
The Myctophiformes are an order of ray-finned fishes consisting of two families of deep-sea marine fish, most notably the highly abundant lanternfishes (Myctophidae). The blackchins (Neoscopelidae) contain six species in three genera, while the bulk of the family belongs to the Myctophidae, with over 30 genera and some 252 species.〔Nelson (2006): p.223〕
The scientific name ultimately derives from Ancient Greek ''myktér'' (μυκτήρ, "nose") + ''óphis'' (ὄφῖς, "serpent") + Latin ''forma'' ("external form"), the Greek part in reference to the long, slender, and heavy-headed shape of these fishes.〔Woodhouse (1910), Glare (1968-1982), FishBase (2006)〕
==Description and ecology==
These smallish fishes inhabit the pelagic and benthopelagic zones of the deep sea. They are laterally compressed and usually have photophores (light organs). The eyes are large, in some decidedly huge, and generally directed straight sideways. The mouth also quite large and located at the tip of the snout; its gape extends to below the eyes or even beyond. They have an adipose fin. The pelvic fin has eight rays in most myctophiforms, and the number of branchiostegal rays is usually higher than six and lower than 12.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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