Washington, September 22: Scientists have used DNA evidence to identify 113 new sharks and rays in Australia, which includes a skinny saw shark, a swell shark that looks like it swallowed a Frisbee, and a river shark.
According to a report in National Geographic News, nearly half of the newly named sharks and other species are found only around Australia.
The discoveries increase the continent''s tally of known sharks and rays by a third.
One of the new fish, the collared carpet shark, is so rare that the only known specimen was found in the belly of another shark.
Some of the new species are already threatened with extinction, according to scientists, and many of the sharks and rays have yet to be named.