noun
olm; Proteus anguinus
A cave-dwelling aquatic salamander native to Europe. The word is usually written in katakana.
ホライモリは洞窟に生息する珍しい両生類です。
The olm is a rare amphibian that lives in caves.
The name ホライモリ is likely a combination of 洞 (hora, 'cave') and 井守 (imori, 'newt'), referring to its cave-dwelling nature and salamander-like appearance. The exact origin is uncertain.