From the Super Mario Wiki
Eeries are ghosts that appear in Super Mario World. They can fly in either straight or wobbly lines and usually come in packs, damaging Mario or Luigi on contact. They are found in most of the Ghost Houses in Dinosaur Land and can only be defeated with invincibility. Eeries make another appearance in Yoshi's Cookie where they appear as the fourth opponent in the game's VS. Mode if the player plays on the Medium difficulty.
Eeries get their name from the word eerie, meaning something strange or frightening.
Artwork of two Eeries attacking Mario.
Names in other languages
|Pun on Teresa (Japanese name for a Boo) and -saurus; officially romanised as "Telesauls" in Super Mario World
Pun on "Spuk" (spook)
- ^ Official German Super Mario World guide, p. 19