Umbonium giganteum (sea snail)
A species of sea snail in the family Trochidae. The name is a taxonomic designation; in everyday contexts, it may simply be referred to as a type of キサゴ.
Umbonium giganteum can sometimes be found during clam digging.
キサゴ is a broader term for Umbonium snails, while ダンベイキサゴ refers specifically to Umbonium giganteum.
Katakana spelling is standard for this species name.
Ateji kanji spelling; rarely used. The word is usually written in kana.
The name is a combination of ダンベイ (of uncertain origin, possibly a person's name or place) and キサゴ (a general term for Umbonium snails). The exact derivation is uncertain.