Nameless
"Nameless" was the designation given to an unidentified species of humanoids that were identified among the Borg drones found on the , a derelict Borg cube controlled by the Romulan Free State. The species was thought to have had a name, but it was unknown, hence this name. 

Soji Asha disliked the name, which she mentioned more then once. Patient 8923/3, a member of this species aboard the cube, had, as of 2399, spent fourteen years in regenestasis. ()
Species