Zocci

Zocci were the species to which Bannakaffalatta belonged.

Biology
Zocci were small Humanoids. They were red with spiked heads. (DW: Voyage of the Damned)

The Zocci look similar to the Vinvocci. (DW: The End of Time) However,the Vinvocci pointed out that they and the Zocci were different, sounding quite annoyed when the Doctor told them about Bannakaffalatta.

Behind the scenes

 * The name of Bannakaffalatta's species was never specified in Voyage of the Damned but was identified by Russell T Davies. The name was confirmed on-screen in The End of Time, by a member of a similar species.
 * Russell T Davies suggests the Zocci and Vinvocci might be related species. (CON: Lords and Masters)