περὶ τῶν εἰς τὰς ἱερουργίας ζώων, καὶ τίνα τὰ τῶν θυσιῶν εἴδη. This is really only a portion of the first book of the work just mentioned, given in Mangey under the title de victimis (II. 237–250). It is possible that these various sections of books—or at least this one—circulated separately, and that thus Eusebius took it for an independent work. See Schürer, p. 851.