Broadgill Catshark vs

Apristurus riveri compared with Eunotia eurycephala

Key Differences

• Broadgill Catshark is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Broadgill Catshark
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Chondrichthyes (Cartilaginous Fish)	Bacillariophyceae (Bacillariophyceae)
Order	Carcharhiniformes (Ground Sharks)	Eunotiales (Eunotiales)
Family	Scyliorhinidae	Eunotiaceae
Genus	Apristurus	Eunotia
Species	Apristurus riveri	Eunotia eurycephala

Conservation Status

Broadgill Catshark

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

Broadgill Catshark

Habitat

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

Range

Found in Venezuela.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Eunotia eurycephala is a freshwater diatom belonging to the Eunotia genus, recognisable by its broadly expanded, rounded headpoles and gently curved valve outline. It is found in soft, acidic freshwater habitats including peatlands, sphagnum bogs, and mountain lakes across Europe and North America. This species serves as a bioindicator for water chemistry monitoring.