Sawtooth Dolpin, Razorback Dolphin or Holadeira is a mystery freswater cetacean, reported from South America. Large freshwater dolphin resembling the Boto but with a dorsal fin that has notches like a saw. A Sawtooth dolphin was observed and photographed twice in 1993 and 1994 by Jeremy Wade in an unnamed lake in the Amazon basin. Wade also heard rumors of similar Sawtooth dolphins in a nearby lake and river.
Possible explanation[]
- A Boto dolphin (Inia geoffrensis) injured by a net or propellor blade, though Wade said the notches appeared precisely spaced.