Monk fish vs small tortoiseshell

Squatina oculata compared with Aglais urticae

Key Differences

• Monk fish is Critically Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Monk fish	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Elasmobranchii	Insecta (Insects)
Order	Squatiniformes (Squatiniformes)	Lepidoptera (Butterflies & Moths)
Family	Squatinidae	Nymphalidae (Brush-footed Butterflies)
Genus	Squatina	Aglais
Species	Squatina oculata	Aglais urticae

Evolutionary Relationship

Monk fish and small tortoiseshell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Monk fish

CR — Critically Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Monk fish	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Monk fish

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway