is said to be mentioned in an ancient MS. as the author of the Rhetorica ad Herennium,
which is printed among Cicero's works.
But the statement is very uncertain; besides which M. Gallio is otherwise altogether unknown.
J. C. Scaliger, de Re Poet.
3.31, 34; Burmann, in the preface to his edition of the Rhet. ad Herenn.