Last Updated：2025/11/30

Valvata utahensis, a freshwater snail with a gill and an operculum, endemic to the United States.

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Utah roundmouth snail

Source Word

Utah roundmouth snail

Valvata utahensis, a freshwater snail with a gill and an operculum, endemic to the United States.

Japanese Meaning

アメリカ合衆国に固有の淡水性のカタツムリ。えらと小さな蓋（オペルカラム）を持つ。

Researchers studying freshwater biodiversity were surprised to find a declining population of the Utah roundmouth snail in the river.

淡水の生物多様性を研究している研究者たちは、その川でアメリカ固有の巻貝 Valvata utahensis（エラとオペルキュラムを持つ淡水種）の個体群が減少していることを発見して驚いた。

Sense（1）

Valvata utahensis, a freshwater snail with a gill and an operculum, endemic to the United States.

Utah roundmouth snails

（ plural ）