Crowned Sifaka vs Gray-bellied Night Monkey

Propithecus coronatus compared with Aotus lemurinus

Key Differences

• Crowned Sifaka is Critically Endangered while Gray-bellied Night Monkey is Vulnerable.

Taxonomic Classification

Rank	Crowned Sifaka	Gray-bellied Night Monkey
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order same	Primates (サル目)	Primates (サル目)
Family	Indriidae	Aotidae
Genus	Propithecus	Aotus
Species	Propithecus coronatus	Aotus lemurinus

Evolutionary Relationship

Crowned Sifaka and Gray-bellied Night Monkey share a common ancestor at the Order level: Primates. (サル目)

Conservation Status

Crowned Sifaka

CR — Critically Endangered

Gray-bellied Night Monkey

VU — Vulnerable

Physical Characteristics

Attribute	Crowned Sifaka	Gray-bellied Night Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Crowned Sifaka

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Gray-bellied Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.