Coastal Rocket Frog vs Simons’s Mouse Opossum

Allobates bromelicola compared with Marmosa simonsi

Key Differences

• Coastal Rocket Frog is Vulnerable while Simons’s Mouse Opossum is Not Evaluated.

Taxonomic Classification

Rank	Coastal Rocket Frog	Simons’s Mouse Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Anura (Frogs & Toads)	Didelphimorphia (Didelphimorphia)
Family	Aromobatidae	Didelphidae
Genus	Allobates	Marmosa
Species	Allobates bromelicola	Marmosa simonsi

Evolutionary Relationship

Coastal Rocket Frog and Simons’s Mouse Opossum share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Coastal Rocket Frog

VU — Vulnerable

Simons’s Mouse Opossum

NE — Not Evaluated

Physical Characteristics

Attribute	Coastal Rocket Frog	Simons’s Mouse Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coastal Rocket Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

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

Simons’s Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

Coastal Rocket Frog

Coastal rocket frog (Allobates bromelicola) is a small terrestrial frog in the family Allophrynidae (formerly placed in Dendrobatidae), endemic to coastal lowland forests of Venezuela. Despite its placement near poison dart frogs, Allobates species are non-toxic. This species inhabits the humid leaf litter and bromeliads of coastal Venezuelan forests, where adults care for egg clutches and transport tadpoles to small water bodies including bromeliad phytotelmata. The genus Allobates is widespread across Amazonian and coastal South American forests, characterised by vocal males, ground-level activity, and close parental care. Coastal rocket frog is assessed as Vulnerable by the IUCN, primarily due to restricted range, habitat loss from deforestation for agriculture, livestock grazing, and urban expansion along Venezuela's coast. Climate change poses an additional threat through altered precipitation patterns affecting its bromeliad microhabitats. The species' specific association with bromeliads makes it particularly sensitive to vegetation structure loss. As with many narrowly endemic amphibians, ex-situ conservation programmes and improved habitat protection within its range are considered important management priorities.