Purna Titali Asana - Full Butterfly Pose
"Titali" means "butterfly" in Sanskrit.
Samasana - Equilibrium Pose
In Sanskrit "sama" means "equilibrium". In this asana the external organs of the body are kept in such a way that they stand divided into two, hence the name Samasana.
Sarvangasana - All-Parts Pose
"Shalabha" means "locust" in Sanskrit. The final position of this asana resembles a locust when it lowers its head to eat and raises its tail. Hence, the name.
Sasankasana - Hare Pose
"Sasanka" means "hare" in Sanskrit. The final position of this asana resembles a bounding hare.