Terentianus Maurus on Metre:

Now the analysis, which we will explain, will give us the metre in which they say that Anacreon wrote his sweet old songs. We find that Petronius, as well as many others, used this metre, when he says that this same lyric poet sang in words harmonious to the Muses. But I will explain with what kind of caesura this verse is written. In the line ( ), the word is the beginning of a hexameter: the remaining words are in the same metre as

( .)