Wyvern

The wyvern in its various forms is important in heraldry, frequently appearing as a mascot of schools and athletic teams (chiefly in the United States, United Kingdom, and Canada). It is a popular creature in European literature, mythology, and folklore. Today they are often used in fantasy literature and video games. The wyvern in heraldry and folklore is rarely fire-breathing, unlike four-legged dragons.

Knucker

Knucker is a dialect word for a sort of water dragon, living in knuckerholes in Sussex, England. "The word comes from the Old English nicor which means "water monster" and is used in the poem Beowulf. It may also be related to the word “Nixie”, which is a form of water spirit, to “Old Nick”, a euphemism for the devil, or to the words “Nykur” (Icelandic water horse), “Nickel” (German goblin). The most famous Knucker lived, according to legend, at Lyminster. The Knucker apparently caused a lot of trouble, consuming local livestock and even villagers, and so it was decided to slay the monster. A number of different legends recount how this was done.

Lindworm

The lindworm (worm meaning snake), also spelled lindwyrm or lindwurm, is a mythical creature in Northern and Central European folklore living deep in the forest that traditionally has the shape of a giant serpent monster. It can be seen as a sort of dragon.

According to legend, everything that lies under the lindworm will increase as the lindworm grows, giving rise to tales of dragons that brood over treasures to become richer. Legend tells of two kinds of lindworm, a good one associated with luck, often a cursed prince who has been transformed into another beast (as in the fairy tale The Frog Prince), and a bad one, a dangerous man-eater which will attack humans on sight. A lindworm may swallow its own tail, turning itself into a rolling wheel, as a method of pursuing fleeing humans.