=Acherontia=, a town of Apulia on a mountain, thence called _Nidus_ by _Horace_, bk. 3, ode 4, li. 14. =Acherūsia=, a lake of Egypt near Memphis, over which, as Diodorus, bk. 1, mentions, the bodies of the dead were conveyed, and received sentence according to the actions of their life. The boat was called Baris, and the ferryman Charon. Hence arose the fable of Charon and the Styx, &c., afterwards imported into Greece by Orpheus, and adopted in the religion of the country.――――There was a river of the same name in Epirus, and another in Italy in Calabria. =Acherūsias=, a place or cave in Chersonesus Taurica, where Hercules, as is reported, dragged Cerberus out of hell. _Xenophon_, _Anabasis_, bk. 6. =Achetus=, a river of Sicily. _Silius Italicus_, bk. 14. =Achillas=, a general of Ptolemy, who murdered Pompey the Great. _Plutarch_, _Pompey_.――_Lucan_, bk. 8, li. 538. =Achillēa=, a peninsula near the mouth of the Borysthenes. _Mela_, bk. 2, ch. 1.――_Herodotus_, bk. 4, chs. 55 & 76.――――An island at the mouth of the Ister, where was the tomb of Achilles, over which it is said that birds never flew. _Pliny_, bk. 10, ch. 29.――――A fountain of Miletus, whose waters rise salted from the earth, and afterwards sweeten in their course. _Athenaeus_, bk. 2, ch. 2. =Achilleienses=, a people near Macedonia. _Xenophon_, _Hellenica_, bk. 3. =Achillēis=, a poem of Statius, in which he describes the education and memorable actions of Achilles. This composition is imperfect. The poet’s premature death deprived the world of a valuable history of the life and exploits of this famous hero. _See:_ Statius.