Brown smooth hound vs Coastal Rocket Frog

Mustelus henlei compared with Allobates bromelicola

Key Differences

• Brown smooth hound is Least Concern while Coastal Rocket Frog is Vulnerable.

Taxonomic Classification

Rank	Brown smooth hound	Coastal Rocket Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Amphibia (Amphibians)
Order	Carcharhiniformes (Ground Sharks)	Anura (Frogs & Toads)
Family	Triakidae	Aromobatidae
Genus	Mustelus	Allobates
Species	Mustelus henlei	Allobates bromelicola

Evolutionary Relationship

Brown smooth hound and Coastal Rocket Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown smooth hound

LC — Least Concern

Coastal Rocket Frog

VU — Vulnerable

Physical Characteristics

Attribute	Brown smooth hound	Coastal Rocket Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.

Brown smooth hound

The Brown Smooth Hound (Mustelus henlei) is a species in the genus Mustelus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.