Dwarf round ray vs Humboldt's Squirrel Monkey

Urotrygon nana compared with Saimiri cassiquiarensis

Taxonomic Classification

Rank	Dwarf round ray	Humboldt's Squirrel Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Primates (Primates)
Family	Urotrygonidae	Cebidae
Genus	Urotrygon	Saimiri
Species	Urotrygon nana	Saimiri cassiquiarensis

Evolutionary Relationship

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

Conservation Status

Dwarf round ray

NT — Near Threatened

Humboldt's Squirrel Monkey

NT — Near Threatened

Physical Characteristics

Attribute	Dwarf round ray	Humboldt's Squirrel Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

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.