Painter's Mussel vs swollen river mussel

Unio pictorum compared with Unio tumidus

Key Differences

• Painter's Mussel is Near Threatened while swollen river mussel is Least Concern.

Taxonomic Classification

Rank	Painter's Mussel	swollen river mussel
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Mollusca (มอลลัสกา)	Mollusca (มอลลัสกา)
Class same	Bivalvia (ชั้นไบวาลเวีย)	Bivalvia (ชั้นไบวาลเวีย)
Order same	Unionida (Unionida)	Unionida (Unionida)
Family same	Unionidae	Unionidae
Genus same	Unio	Unio
Species	Unio pictorum	Unio tumidus

Evolutionary Relationship

Painter's Mussel and swollen river mussel share a common ancestor at the Genus level: Unio.

Conservation Status

Painter's Mussel

NT — Near Threatened

swollen river mussel

LC — Least Concern

Physical Characteristics

Attribute	Painter's Mussel	swollen river mussel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Painter's Mussel

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

swollen river mussel

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden