Mythology siren and nymph?

the sirens were known to be women. they would seduce men at sea with their beautiful songs and the men would sail their ship towards the siren's island. But before they reached the sirens they would hit the rocks around the island and sink and drown. Nymphs were "spirits" of the forest. they would just chill in the forest and do things there. i never heard of a nymph killing anyone, a famous nymph is Echo if you want to look her up.