マタマタマタマタMeanings1nounmatamata turtleA South American freshwater turtle with a distinctive flattened head and rough shell. Scientific name: Chelus fimbriata.マタマタは南なん米べいの川かわに生せい息そくするカメの一いっ種しゅだ。The matamata is a type of turtle that lives in South American rivers.