Anjaneya: Son of Anjani, Asana: Posture/Seat

This is in reference to the monkey lord Hanuman who's mother was Anjani.
This is also excellent preparation for Hanumanasana as it gets into the hip flexors. Preparing the body for the 'giant leap' that the splits is!
Another common name for this posture is Crescent Moon because of its sweeping crescent like lines and cool/lunar intensity.