Photo: hakkahamushi / CC BY-NC 4.0 / iNaturalist
Prefectural Natural Monument
Molluscs
Freshwater Pearl Mussel
Margaritifera laevis
The Freshwater Pearl Mussel is a large bivalve of cold, clean rivers and is very long-lived. Its larvae develop temporarily as parasites on the gills of salmonid fish, a distinctive life cycle. Declining from water pollution and river works, its habitats such as those in Omachi, Nagano, are designated Natural Monuments.
- Scientific name
- Margaritifera laevis
- Group
- Molluscs
- Prefectures
- Nagano, Okayama
- 日本語
- カワシンジュガイ
- 简体中文
- 珍珠蚌（淡水珠母贝）
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Frequently asked questions
The Freshwater Pearl Mussel is designated as a species without a fixed area and lives in places such as Nagano, Okayama.
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