Black-headed Night Monkey vs Spear-Leaved Willowherb

Aotus nigriceps compared with Epilobium lanceolatum

Key Differences

• Black-headed Night Monkey is Least Concern while Spear-Leaved Willowherb is Near Threatened.

Taxonomic Classification

Rank	Black-headed Night Monkey	Spear-Leaved Willowherb
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Primates (Primates)	Myrtales (Myrtales)
Family	Aotidae	Onagraceae
Genus	Aotus	Epilobium
Species	Aotus nigriceps	Epilobium lanceolatum

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Spear-Leaved Willowherb

NT — Near Threatened

Physical Characteristics

Attribute	Black-headed Night Monkey	Spear-Leaved Willowherb
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Spear-Leaved Willowherb

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, Norway, and Portugal. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.