Kappa
Kawatarō · Komahiki · Kawako
Homo aquaticus japonica (folklore)
1600First Report
200+Sightings
3–4 ft (0.9–1.2 m)Est. Size
disputedStatus
❓ HybridEvidence Tier 1: Anecdotal
Evidence Level
Tier 1/5 — Anecdotal
Overview
A water imp from Japanese folklore inhabiting rivers and ponds. Depicted as a child-sized humanoid with a tortoise shell, webbed hands, a beak, and a dish of water on its head. Known for challenging humans to sumo and allegedly drowning those who refuse.
Physical Characteristics
Child-sized, tortoise shell, webbed hands, beak-like mouth, greenish scaly skin, concave dish on head that must remain filled with water (their power source).
📍 Habitat & Region
Rivers and ponds, Japan · JP
Rivers, ponds, and lakes throughout Japan, particularly Tohoku and Kyushu regions
Notable Events
1603
First major written account in the Konjaku Hyakumonogatari Hyakuban
1910
Official Kappa warning signs erected near rivers in Hyuga, Miyazaki Prefecture