Qetesh home planet

From Tardis Wiki, the free Doctor Who reference

A planet was the home of the Qetesh, a race of humanoids who fed off other beings and then transferred the energy to an external stomach that existed outside of their own body. Ruby White was the only Qetesh ever encountered by the Bannerman Road gang, and she was exiled onto a prison ship for crimes against her people. (TV: Goodbye, Sarah Jane Smith)