Thrasalisk

Thrasalisks are a crossbreed of dragon and basilisk, born from the magical experiments of a mad wizard. The creature's venom is extremely toxic, capable of killing the strongest of men with a mere drop.

Basilisk

The Basilisk begins it's life cycle as an egg impossibly laid by a rooster, which is then incubated by a snake. The resulting creature is so incredibly venomous that even it's gaze can poison and kill. As it walks it's breath dries up the grass and vegetation around it, leaving trails of death in it's wake.

Modern folklorists have theorized that stories of the Basilisk may have sprung from accounts of the Indian spitting cobra.

See also:

Cockatrice

Cockatrice

The Cockatrice is hatched from a rooster's egg which is incubated by a snake or toad. The resulting creature is highly poisonous, so much that merely breathing on someone will kill them, and a concentrated look can turn one into stone. The only natural predator of the cockatrice is the weasel, which is immune to it's stone gaze.