(ἁι τοῦ Ἡρακλέους Θῖνες
a range of sand-hills in the NW. of Cyrenaica, behind Hesperides, containing the source of the river Lathon. (Ptol. 4.4
. § § 8, 10.) They form the N. part of the Jebel Barkah,
its S. part being the VELPI M. of Ptolemy.