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The Japanese sawshark (Pristiophorus japonicus) is a species of sawshark in the family Pristiophoridae. This shark has a long, narrow rostrum. This shark has a long, narrow rostrum. Its first dorsal fin originates behind the tips of the pectoral fins, and its caudal fin is angled almost straight in line with the body.
A sawshark or saw shark is a member of a shark order (Pristiophoriformes / p r ɪ s t i ˈ ɒ f ɒr ɪ f ɔːr m iː z /) bearing a unique long, saw-like rostrum (snout or bill) edged with sharp teeth, which they use to slash and disable their prey.
Two marine biologists share 10 shark facts for kids, as well as why shark attacks happen and why sharks are essential to human survival.
Pristiophorus is a genus of sawsharks found in the Pacific, Atlantic and Indian oceans. Members of this genus differ from the Sixgill Sawshark (Pliotrema warreni) in having five gill slits.
In approximate order of impact, the four most serious threats today are use in shark fin soup, as traditional medicine, rostral teeth for cockfighting spurs and the saw as a novelty item. [4] Despite being rays rather than sharks, [ 1 ] sawfish have some of most prized fins for use in shark fin soup, on level with tiger , mako , blue ...
The elongated, saw-like snout tapers evenly to its tip, and bears very slender lateral teeth of variable length and a pair of filamentous, dorsoventrally flattened barbels. The eyes are large and oval in shape. Its nostrils about one-third the distance from the corner of the mouth to the barbel attachment on the rostrum. [4]
Galeus mincaronei Soto, 2001 (southern saw-tail catshark) Galeus murinus (Collett, 1904) (mouse catshark) Galeus nipponensis Nakaya, 1975 (broad-fin saw-tail catshark) Galeus piperatus S. Springer & M. H. Wagner, 1966 (peppered catshark) Galeus polli Cadenat, 1959 (African saw-tail catshark) Galeus priapus Séret & Last, 2008 (phallic catshark)
Its body is generally shark-like, but its most obvious feature is the flattened head, which is extended forward in a blade-like bony snout with, in Australian waters, 18 to 22 pairs of sideways-facing teeth. However, elsewhere there may be as many as 25. [6] These teeth are short, flat, and roughly triangular in shape.