Naval scenes are very rare, but we find occasional early representations of sea-fights,[1842] as on the Dipylon vases, the vessels on which appear to be biremes.[1843] On the B.F. and R.F. vases we find war-galleys[1844] or merchant-vessels,[1845] usually in places suitable for a row of ships—such as the outer edge of a kylix[1846] or the broad rim of a _deinos_ or large bowl.[1847] These are specially common on vases of “mixed” technique. The subject of “keel-hauling,” the punishment administered to refractory sailors, must also find a place here.[1848] 8. ORIENTALS AND BARBARIANS Oriental figures which can neither be classified as mythological, historical, or _genre_ subjects sometimes appear on vases. We have already made mention of such quasi-mythological subjects as combats of Gryphons with Arimaspi or other figures in Oriental attire.[1849] Phrygian warriors, too, may be seen in some Trojan scenes—such as the sack of Troy or the flight of Aeneas[1850]—but their presence in scenes of departure or combat does not necessarily make the subject mythological.[1851] It is not always easy to identify the nationality of these barbarians, and the names usually given to them—Persian, Phrygian, or Scythian—must in many cases be regarded as somewhat conventional, except where details of costume are unmistakable.[1852] Archers in Oriental costumes, wearing peaked caps with long lappets, and close-fitting costume of jerkin and trousers (ἀναξυρίδες), stippled over to indicate skin, are seen shooting arrows, on foot or on horseback,[1853] or accompanying the chariots of Greek warriors,[1854] or taking part in general combats[1855]; as also warriors blowing trumpets.[1856] Persian warriors in combat with Greeks appear on R.F. vases of the strong period,[1857] and may have some reference to the historical events of the time. It is even suggested that one is copied from the famous painting by Mikon of the battle of Marathon.[1858] One vase represents a sort of triumphal procession, perhaps of a Persian king, riding on a camel[1859]; and others depict Persians riding.[1860] Those of undoubted historical signification have already been mentioned.[1861] Scythians appear as mounted or unmounted archers,[1862] a Scythian horseman is attacked by a lion,[1863] a Scythian pursues two courtesans,[1864] and there is a curious scene depicting the revels of the Scythian Agathyrsi.[1865] Thracians, in the typical local costume of ζεῖρα (a thick cloak) and ἀλωπεκῆ (a fox-skin cap), appear by themselves or with Orpheus and Boreas[1866]; Thracian horsemen are represented setting out[1867]; and after the conquests of Miltiades the local costume appears to have become fashionable among the Athenian youth, as they are depicted wearing it on some contemporary vases.[1868] The Thracian custom of tattooing is suggested in some of the Orpheus scenes.[1869]