Bigeye Numbfish vs Cottontop Tamarin

Narcine oculifera compared with Saguinus oedipus

Key Differences

• Bigeye Numbfish is Data Deficient while Cottontop Tamarin is Critically Endangered.

Taxonomic Classification

Rank	Bigeye Numbfish	Cottontop Tamarin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Torpediniformes (electric ray)	Primates (Primates)
Family	Narcinidae	Callitrichidae
Genus	Narcine	Saguinus
Species	Narcine oculifera	Saguinus oedipus

Evolutionary Relationship

Bigeye Numbfish and Cottontop Tamarin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye Numbfish

DD — Data Deficient

Cottontop Tamarin

CR — Critically Endangered

Physical Characteristics

Attribute	Bigeye Numbfish	Cottontop Tamarin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye Numbfish

Cottontop Tamarin

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Colombia. Currently classified as Critically Endangered 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.