Humboldt's Squirrel Monkey vs Round Ray

Saimiri cassiquiarensis compared with Rajella fyllae

Key Differences

• Humboldt's Squirrel Monkey is Near Threatened while Round Ray is Not Evaluated.

Taxonomic Classification

Rank	Humboldt's Squirrel Monkey	Round Ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Primates (Primates)	Rajiformes (Rajiformes)
Family	Cebidae	Rajidae
Genus	Saimiri	Rajella
Species	Saimiri cassiquiarensis	Rajella fyllae

Evolutionary Relationship

Humboldt's Squirrel Monkey and Round Ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Humboldt's Squirrel Monkey

NT — Near Threatened

Round Ray

NE — Not Evaluated

Physical Characteristics

Attribute	Humboldt's Squirrel Monkey	Round Ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Humboldt's Squirrel Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Round Ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.