Parapotamii is a settlement on the Cephissus, in the neighbourhood of Phanoteus, Chæroneia, and Elateia. This place, according to Theopompus, is distant from Chæroneia about 40 stadia, and is the boundary between the Ambryseis, Panopeis, and Daulieis. It is situated at the entrance from Bœotia to the Phocians, upon an eminence of moderate height, between Parnassus and the mountain [Hadylium, where there is an open space] of 5 stadia in extent, through which runs the Cephissus, affording on each side a narrow pass. This river has its source at Lila, a Phocian city, as Homer testifies;
and empties itself into the lake Copais. But Hadylium extends 60 stadia, as far as Hyphanteium, on which Orchomenus is situated. Hesiod also enlarges on the river and its stream, how it takes through the whole of Phocis an oblique and serpentine course; “‘which, like a serpent, winds along Panopeus and the strong Glechon, and through Orchomenus.’2” The narrow pass near Parapotamii, or Parapotamia, (for the name is written both ways,) was disputed in [the Phocian war,] for this is the only entrance [into Phocis].3 There is a Cephissus in Phocis, another at Athens, and another at Salamis. There is a fourth and a fifth at Sicyon and at Scyrus; [a sixth at Argos, having its source in the Lyrceium].4 At Apollonia,5 also, near Epidamnus,6 there is near the Gymnasium a spring, which is called Cephissus.
“ they who occupied Lilæa, near the source of the Cephissus;1”Il. ii. 523.