Bent Ring Lichen vs Broadgill Catshark

Arctoparmelia incurva compared with Apristurus riveri

Key Differences

• Bent Ring Lichen is Critically Endangered while Broadgill Catshark is Least Concern.

Taxonomic Classification

Rank	Bent Ring Lichen	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	Parmeliaceae	Scyliorhinidae
Genus	Arctoparmelia	Apristurus
Species	Arctoparmelia incurva	Apristurus riveri

Conservation Status

Bent Ring Lichen

CR — Critically Endangered

Broadgill Catshark

LC — Least Concern

Physical Characteristics

Attribute	Bent Ring Lichen	Broadgill Catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bent Ring Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, 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.

Bent Ring Lichen

The Bent Ring Lichen (Arctoparmelia incurva) is a species in the genus Arctoparmelia. It is currently classified as Critically Endangered on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

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.