Odontanthias cauoh, the red jewelfish, is a species of marine ray-finned fish in the family Serranidae. It is found in the eastern Atlantic Ocean.
The fish is named after "Carolina", the popular name for this fish among Brazilian professional fishermen at St. Paul's Rocks in the eastern Atlantic, but it was shortened to the nickname Cauó because of the first author's elder daughter, Ana Carolina S. R. Carvalho, and pronounced kau-oh.[1]