Thomas W. Allen, E. E. Sikes, Commentary on the Homeric Hymns

Δρακάνῳ: this is usually supposed to be the promontory in the island of Icaros (Strabo xiv. 639, Paus.ix. 11. 2). Hermann and others therefore hold that “Ἰκάρῳ” could not refer to the island, as the whole would include the part. But, although there were several other places of the name (Pliny N. H. iv. 23, Byz. Steph. s.v.), Icaros is here undoubtedly the island near Samos. The poet might mean “either on Dracanon or (elsewhere) in Icaros.” But Maass (Hermes xxvi. 1891, p. 178 f.) is probably right in identifying Dracanon with a cape of the same name in Cos, an island which had some connexion with Dionysus. For this cape see Strabo 657, where it is spelt “Δρέκανον” (other variations are “Δράκονον, Δρακάνιον, Δράκανος”; the forms in “α” and “ε” are equally sound, being perhaps from [root ]“δρακ, [ροοτ ]δρεκ”, in “δέρκομαι, ἔδρακον”). The Dracanon in Theocr. xxvi. 33, Dion. ix. 16 (mentioned as the birthplace) is also to be taken as in Cos; so also Anth. Pal. vii. 651. 3 “ἀλλὰ τὰ μὲν Δολίχης τε καὶ αἰπεινῆς Δρακάνοιο”

“Ἰκάριον ῥήσσει κῦμα περὶ κροκάλαις”, where, as in the hymn, the promontory is mentioned as separate from the island (Doliche is the old name of Icaros, Apollod.ii. 6. 3).