Black-Lined Periwinkle vs Polyphyllous Globe Thistle

Littorina saxatilis compared with Echinops foliosus

Key Differences

• Black-Lined Periwinkle is Least Concern while Polyphyllous Globe Thistle is Vulnerable.

Taxonomic Classification

Rank	Black-Lined Periwinkle	Polyphyllous Globe Thistle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Afrosoricida (Afrosoricida)
Family	Littorinidae	Tenrecidae
Genus	Littorina	Echinops
Species	Littorina saxatilis	Echinops foliosus

Evolutionary Relationship

Black-Lined Periwinkle and Polyphyllous Globe Thistle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black-Lined Periwinkle

LC — Least Concern

Polyphyllous Globe Thistle

VU — Vulnerable

Physical Characteristics

Attribute	Black-Lined Periwinkle	Polyphyllous Globe Thistle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-Lined Periwinkle

Habitat

Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands within the Afrotropic biogeographic realm.

Range

Widely distributed across Africa (Namibia, South Africa), Europe (5 countries), and North America (United States).

Polyphyllous Globe Thistle

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Black-Lined Periwinkle

The Black-Lined Periwinkle (Littorina saxatilis) is a species in the genus Littorina. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands within the Afrotropic biogeographic realm.