The Claw Shansheeth were a rogue group of Shansheeth.
History
The group operated in the 15th Funeral Fleet. They returned the Doctor to Earth, proclaiming him dead. They planned to drain the life force from Sarah Jane Smith and Jo Jones through their memories of the Doctor. The Eleventh Doctor was in fact trapped, but escaped through use of Artron energy. The Shansheeth then confronted and attacked him. He managed to escape, but they took Sarah Jane and Jo prisoner.
They attacked both women to the Memory Weave and began the process of absorbing their memories; they hoped to conjure a TARDIS key so they could prevent death throughout the universe. However, this would fracture time. The machine was overloaded by the many memories of Jo and Sarah Jane. It then self-destructed, killing the group of aliens. The Wide Wing of the High Shansheeth Nest later apologised on behalf of them. (SJA: Death of the Doctor)