Lipotes vexillifer

Lipotes vexillifer

see dolphin.
References in periodicals archive ?
Surveys of the Yangtze River dolphin, Lipotes vexillifer, showed that by 2006 its population had dwindled to just 17 individuals.
Believed to be the world's most endangered cetacean, the species Lipotes vexillifer, also known as the baiji, is a freshwater dolphin found only in the Yangtze River in China and is threatened by such factors as collisions with boats, pollution of water and by-catches, they said.