Adder'S Tongue vs Gray-shanked Douc Langur

Ophioglossum vulgatum compared with Pygathrix cinerea

Key Differences

• Adder'S Tongue is Vulnerable while Gray-shanked Douc Langur is Critically Endangered.

Taxonomic Classification

Rank	Adder'S Tongue	Gray-shanked Douc Langur
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (Mammals)
Order	Ophioglossales (Ophioglossales)	Primates (Primates)
Family	Ophioglossaceae	Cercopithecidae (Old World Monkeys)
Genus	Ophioglossum	Pygathrix
Species	Ophioglossum vulgatum	Pygathrix cinerea

Conservation Status

Adder'S Tongue

VU — Vulnerable

Gray-shanked Douc Langur

CR — Critically Endangered

Physical Characteristics

Attribute	Adder'S Tongue	Gray-shanked Douc Langur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Adder'S Tongue

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Colombia). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Gray-shanked Douc Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Adder'S Tongue

The Adder'S Tongue (Ophioglossum vulgatum) is a species in the genus Ophioglossum. It is currently classified as Vulnerable on the IUCN Red List. This species inhabits Typically found in moist, shaded forest floors and tropical canopies, found across Belgium, Colombia, Denmark, Norway, and Portugal.