A nuppeppo is a wrinkly, featureless yokai with powder-white skin that smells of rotting flesh. It’s a harmless, solitary creature that can be found in deserted towns, graveyards, and temples. Some say eating a nuppeppo will grant eternal youth. Image: Hyakkai Zukkan
Hyosube is a Japanese yokai, that’s a cousin to the kappa. This child-sized river monster comes out at night and loves to gorge himself on eggplants, sometimes ravaging an entire field. If Hyosube laughs, and you join him, you will die. Image: Bakemono no e
Echidna is a cave dwelling, half-woman, half-snake being. With Typhon, she bore all of Greek Mythology’s most famous monsters: the regenerating Hydra, Cerberus who guards the gates of Hades, the Chimera, the riddle-giving Sphinx, and more. Image: Gabriele Delhey
The Ushi-Oni is a spider-like, ox-headed yokai (supernatural creature) from Japanese folklore who appears on beaches, mountains, forests, swamps, and lakes. They’re savage beasts who spit poison and love to kill and eat humans and livestock. Image: Hyakkai-Zukan
The nuckelavee is a fearsome sea monster found on Scotland’s Northern Isles that, when on land, has been described as humanoid rider fused with a horse, skinless with black blood coursing through yellow veins. Its breath wilts crops and is responsible for epidemics and drought. Image: michael221 on Deviant Art CC-BY-SA
The Monster of Krakow first appeared in Histoires Prodigieuses by Pierre Boaistuau, 1559. Four hours after its birth, the demonic beast reportedly uttered “Watch, the Lord cometh” and died. Source: Wellcome Collection
Amduscias is a unicorn demon that can summon a demonic orchestra of enchanted musical instruments that play on their own. Trees sway at the sound of his voice, and he gives people the power to make trees fall. From Dictionnaire Infernal, 1863.