Thread:DARTHxREVAN55/@comment-26397825-20151222044147/@comment-26397825-20151222075114

RT themselves have decided that the plural of Faunus is Faunus, and I suppose this is tomavoid similarities to Fauna, the Latin? word for the animal category. It actually really gets on Arryn's (the voice actor for Blake) to see the plural of Faunus as anything but Faunus'.

Also, the pronunciation of Faunus' is Faunus-es; they follow the standard rules for writing things that end with s as a plural (as in, the extra s is non existant visually, but exists audibly).