False widow vs Goeldi's marmoset

Steatoda bipunctata compared with Callimico goeldii

Key Differences

• False widow is Least Concern while Goeldi's marmoset is Vulnerable.

Taxonomic Classification

Rank	False widow	Goeldi's marmoset
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Arachnida (Arachnids)	Mammalia (Mammals)
Order	Araneae (Araneae)	Primates (Primates)
Family	Theridiidae	Callitrichidae
Genus	Steatoda	Callimico
Species	Steatoda bipunctata	Callimico goeldii

Evolutionary Relationship

False widow and Goeldi's marmoset share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

False widow

LC — Least Concern

Goeldi's marmoset

VU — Vulnerable

Physical Characteristics

Attribute	False widow	Goeldi's marmoset
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

False widow

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Found across Europe (4 countries) and North America (Canada, United States).

Goeldi's marmoset

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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