On the 21st of January 2007, off the coast of Japan, a strange sea-serpent like creature was spotted by fishermen. They alerted marine biologists who observed the creature and decided that it must be either injured, sick or in some other form of distress as it appeared disorientated. The creature was brought to the Awashima Marine Park in Shizuoka, southwest of Tokyo, and placed in a seawater pool but unfortunately it died within a few hours.
Despite a lot of attention and speculation about the creature in the media, this creature is not unknown to science. It was in fact, a frilled shark, Chlamydoselachus anguineus, is a primitive species, of the family Chlamydoselachidae in the order Hexanchiformes. (Chlamydoselacus = frilled cartilagenous fish; anguineus = eel). This species inhabits the deep waters of the sea along the continental shelf and is a an occasional bycatch of deep sea trawlers. If caught it is either sold as food or processed for fish feed. Its appearace in shallow waters, however, is very rare. It is more ancient than the sharks that most of the public are familiar with. It has 6 gill slits as compared to the more common 5 gill slits.
"Prominently mentioned in books on sea serpents, the frilled shark can easily qualify for this designation. It is certainly serpentlike in appearance; in fact, it looks more like an eel than a a shark. (Its specific name, anguineus, comes from the word for eel.) Where other sharks have plain gill slits, this creature has a collar of frills, and its mouth, instead of being underslung as the mouth of a shark is supposed to be, is terminal. Its teeth are three-pronged (trident-shaped). Surely this must be the archetypal sea serpent, and it would be -- if it ever grew longer than six feet. " (Source: Richard Ellis)
