charcarodon pteryops giganticus
The Tau Cetian relative of Charcarodon Megalodon (the ancient Great White Shark, specimens of which up to 100 feet in length have been found as fossils on Earth). The distinctive feature of the Tau Cetian variety, notwithstanding its length, is its winglike appendages (similar to those of terrestrial "flying fish" classification "excocetidae"). The Tau Cetian Great Whites are known to be able to fly lengths up to 400 meters, and exceed altitudes of 13 meters.
The lagoons of Tau Ceti were placid until the Charcarodon pteryops giganticus broke the surface of the water.