(This is a fantastic and bloodthirsty costume, with a snaky theme and a classic Greek chiton rather than the usual gown of the era. It may well still have been worn over a corset and bustle, though!)
Red or black veils, snakes entwined about bare arms, buskins like a huntress, rough chiton of brown, or black, or blood-coloured, girt with skins of snakes; other serpents bind their waists, and their garments are embroidered with snakes' eyes.
Source: Holt, Ardern. Fancy Dresses Described, 5th Edition. London: Debenham & Freebody, 1887.