De Verborum Significatu
Sextus Pompeius Festus
Piscatori ludi vocantur qui quotannis mense Iunio trans Tiberim fieri solent a praetore urbano pro piscatoribus Tiberinis; quorum quaestus non in macellum pervenit, sed fere in aream Volkani, quod id genus pisciculorum vivorum datur ei deo pro animis humanis.
The games called ' Fishermen's' are those usually held every year in the month of June across the Tiber by the urban praetor on behalf of the Tiber fishermen: their catch does not reach the market, but nearly into the area of Vulcan, because this type of little live fish is given to that god for human souls.
Translation by Jane W. Crawford, © 2001.