#delighted to discover that there are river manatees too

Iara, the 205th Known One.

According to the oral tale, Iara is a beautiful young woman, sometimes described as having green hair, light brown or copper-colored skin (…) and brown eyes, with a tail similar as a freshwater river dolphin, manatee or fish body (…) who would sit on a rock by the river combing her hair or dozing under the sun. When she felt a man around she would start to sing gently to lure him. Once under the spell of the Iara a man would leave anything to live with her underwater forever, due to the fact that she was pretty and would cater for all the needs of her lover for the rest of his life. Other versions indicate that she slew the men and drowned them. - Wikipedia