score:9
Just to answer myself:
According to Stephen Dando-Collins in his book "Caesar's Legion" he names them as the 2nd and the Indigena legions.
Nic Fields in his book "The Roman Army: Civil Wars" (page 57) names these former Pompey legions as the 2nd and Vernacula legions. (Vernacula comes also from Caesar's War Commentaries).
The Oxford Encyclopedia of Ancient Greek and Rome names the "legio vernacula" as a "legion made up of indigenous people". (page 426)