Frill-necked lizard (Scooby-Doo! and the Legend of the Vampire)

Frill-necked Lizards are a species of lizards from Australia.

Physical Appearance
They're olive green and they have large frills.

Personality
It sticked its tounge at Shaggy Rogers and he stick his tounge back and it scares Shaggy by using its large frill.

Scooby-Doo! And the Legend of the Vampire
While Scooby-Doo and the gang were having drinks, Shaggy spotted a frill-necked lizard and the lizard sticks its tounge at Shaggy and Shaggy showed his tounge at the lizard and the frill-necked lizard hoods its large frill and scares Shaggy.

Trivia

 * The frill-necked lizard was also known as the frilled-lizard.