Annamese Langur vs Black-Lined Periwinkle

Trachypithecus margarita compared with Littorina saxatilis

Key Differences

• Annamese Langur is Endangered while Black-Lined Periwinkle is Least Concern.

Taxonomic Classification

Rank	Annamese Langur	Black-Lined Periwinkle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Primates (Primates)	Littorinimorpha (Littorinimorpha)
Family	Cercopithecidae (Old World Monkeys)	Littorinidae
Genus	Trachypithecus	Littorina
Species	Trachypithecus margarita	Littorina saxatilis

Evolutionary Relationship

Annamese Langur and Black-Lined Periwinkle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Annamese Langur

EN — Endangered

Black-Lined Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Annamese Langur	Black-Lined Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Annamese Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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).

Annamese Langur

The Annamese Langur (Trachypithecus margarita) is a species in the genus Trachypithecus. It is currently classified as Endangered on the IUCN Red List. 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.