vs Broadgill Catshark

Bacidia rosella compared with Apristurus riveri

Key Differences

• is Critically Endangered while Broadgill Catshark is Least Concern.

Taxonomic Classification

Rank		Broadgill Catshark
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Chondrichthyes (Cartilaginous Fish)
Order	Lecanorales (Lecanorales)	Carcharhiniformes (Ground Sharks)
Family	Ramalinaceae	Scyliorhinidae
Genus	Bacidia	Apristurus
Species	Bacidia rosella	Apristurus riveri

Conservation Status

CR — Critically Endangered

Broadgill Catshark

LC — Least Concern

Physical Characteristics

Attribute		Broadgill Catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 5 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Broadgill Catshark

Habitat

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

Range

Found in Venezuela.

Bacidia rosella is a crustose lichen in the family Ramalinaceae, assessed as Critically Endangered (CR). It grows on the smooth bark of ancient trees in old-growth woodland habitats with long ecological continuity. Its critically endangered status reflects extreme rarity and the near-total loss of suitable veteran tree habitats across its range.

Broadgill Catshark

The Broadgill Catshark (Apristurus riveri) is a species in the genus Apristurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.