Adder’S-Mouth vs Black-headed Night Monkey

Malaxis bayardii compared with Aotus nigriceps

Key Differences

• Adder’S-Mouth is Critically Endangered while Black-headed Night Monkey is Least Concern.

Taxonomic Classification

Rank	Adder’S-Mouth	Black-headed Night Monkey
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Mammalia (Mammals)
Order	Asparagales (Asparagales)	Primates (Primates)
Family	Orchidaceae	Aotidae
Genus	Malaxis	Aotus
Species	Malaxis bayardii	Aotus nigriceps

Conservation Status

Adder’S-Mouth

CR — Critically Endangered

Black-headed Night Monkey

LC — Least Concern

Physical Characteristics

Attribute	Adder’S-Mouth	Black-headed Night Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Adder’S-Mouth

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Adder’S-Mouth

The Adder’S-Mouth (Malaxis bayardii) is a species in the genus Malaxis. It is currently classified as Critically Endangered on the IUCN Red List. This species inhabits Typically found in grasslands, wetlands, forests, and cultivated landscapes, found across Canada and United States.

Black-headed Night Monkey

The Black-headed Night Monkey (Aotus nigriceps) is a species in the genus Aotus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.