Bigeye Numbfish vs Gray-bellied Night Monkey

Narcine oculifera compared with Aotus lemurinus

Key Differences

• Bigeye Numbfish is Data Deficient while Gray-bellied Night Monkey is Vulnerable.

Taxonomic Classification

Rank	Bigeye Numbfish	Gray-bellied Night Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Torpediniformes (electric ray)	Primates (Primates)
Family	Narcinidae	Aotidae
Genus	Narcine	Aotus
Species	Narcine oculifera	Aotus lemurinus

Evolutionary Relationship

Bigeye Numbfish and Gray-bellied Night Monkey share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye Numbfish

DD — Data Deficient

Gray-bellied Night Monkey

VU — Vulnerable

Physical Characteristics

Attribute	Bigeye Numbfish	Gray-bellied Night Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye Numbfish

Gray-bellied Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Bigeye Numbfish

The Bigeye Numbfish (Narcine oculifera) is a species in the genus Narcine.