Amazonian manatee vs Bigtooth river stingray

Trichechus inunguis compared with Potamotrygon henlei

Key Differences

• Amazonian manatee is Vulnerable while Bigtooth river stingray is Least Concern.

Taxonomic Classification

Rank	Amazonian manatee	Bigtooth river stingray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Sirenia (Sirenia)	Myliobatiformes (Myliobatiformes)
Family	Trichechidae	Potamotrygonidae
Genus	Trichechus	Potamotrygon
Species	Trichechus inunguis	Potamotrygon henlei

Evolutionary Relationship

Amazonian manatee and Bigtooth river stingray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazonian manatee

VU — Vulnerable

Bigtooth river stingray

LC — Least Concern

Physical Characteristics

Attribute	Amazonian manatee	Bigtooth river stingray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonian manatee

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Bigtooth river stingray

Amazonian manatee

The Amazonian manatee (Trichechus inunguis) is a species in the genus Trichechus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Bigtooth river stingray

The Bigtooth river stingray (Potamotrygon henlei) is a species in the genus Potamotrygon. It is currently classified as Least Concern on the IUCN Red List.