Eктωρ said:Snakey dragon isn't exclusive to East Asian. It's been popularised because people really like East Asian art, but the snakey dragon thing is very old and widespread. For example, the words "worm" and "wyrm" in English are derived from North Germanic word for dragon. Norse had the word "ormr", which survives, at least, in Faroese.
Dreki is the old norse (In modern Icelandic and Faroese aswell) word for dragon but ormr means worm or serpent.