Black-headed Night Monkey vs Fat Guam Partula

Aotus nigriceps compared with Partula gibba

Key Differences

• Black-headed Night Monkey is Least Concern while Fat Guam Partula is Critically Endangered.

Taxonomic Classification

Rank	Black-headed Night Monkey	Fat Guam Partula
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Primates (Primates)	Stylommatophora (Stylommatophora)
Family	Aotidae	Partulidae
Genus	Aotus	Partula
Species	Aotus nigriceps	Partula gibba

Evolutionary Relationship

Black-headed Night Monkey and Fat Guam Partula share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Fat Guam Partula

CR — Critically Endangered

Physical Characteristics

Attribute	Black-headed Night Monkey	Fat Guam Partula
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Fat Guam Partula

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Norway 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

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.