ACHILLEUS CURSUS (Ἀχιλλειος ὕπομος), in Ancient Geography, a narrow tongue of land near the mouth of the Borysthenes, where Achilles is said to have instituted races. Opposite to it was the celebrated ACHILLES INSULA, or LEUCE (Serpent's Isle), with a temple sacred to that hero. Europ. Iphig. in Taur. 438.