Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Somniosidae (Sleeper sharks)
Etymology: Somniosus:Latin for sleepy, reflecting Lesueur’s surmise that these sharks are slow or sluggish because of their relatively small fins (hence the name sleeper sharks). (See ETYFish); longus:Latin for long, perhaps referring to what Tanaka described as its “oblong” shape. (See ETYFish). More on author: Tanaka.
Environment: milieu / climate zone / depth range / distribution range
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