- This article is about a Peladon sect. You may be looking for the black hole called The Siren.
Siren is the informal name given to a sect of female Peladons on Pegasus Major IV, specially trained to exert psychological influence on many humanoid males. They were named such by the first Federation captain to encounter them, after beings from Greek mythology. (TOS - The Brave and the Bold, Book One novella: The First Artifact)