sentences:  Longnose sawtail catshark
  
  The longnose sawtail catshark ("Galeus longirostris") is a little-known species of catshark, part of the family Scyliorhinidae, found off the northwestern Pacific islands of Amami Ōshima, Ogasawara, and Izu at depths of .Reaching a length of , it is characterized by a long flattened snout, a long space between the pelvic and anal fins, and a crest of enlarged dermal denticles along the dorsal caudal fin edge.