Have You Seen Frilled Shark? Then Watch This
The frilled shark is one of two extant species of shark in the family Chlamydoselachidae, with a wide but patchy distribution in the Atlantic and Pacific Oceans. This uncommon species is found over the outer continental shelf and upper continental slope, generally near the bottom though there is evidence of substantial upward movements.
It has been caught as deep as 1,570 m (5,150 ft), whereas in Suruga Bay, Japan it is most common at depths of 50–200 m (160–660 ft). Exhibiting several “primitive” features, the frilled shark has often been termed a “living fossil”. It reaches a length of 2 m (6.6 ft) and has a dark brown, eel-like body with the dorsal, pelvic, and anal fins placed far back.
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Its common name comes from the frilly or fringed appearance of the gill slits, of which there are six pairs with the first pair meeting across the throat.
Seldom observed, the frilled shark is speculated to capture its prey by bending its body and lunging forward like a snake. The long, extremely flexible jaws enable it to swallow large prey whole, while the many rows of small, needle-like teeth prevent escape. It feeds mainly on cephalopods, while also consuming bony fishes and other sharks. Frilled sharks are occasionally captured as bycatch by commercial fisheries but have little economic value.