brittlestar vs Mourning Cloak

Amphiura filiformis compared with Nymphalis antiopa

Key Differences

• brittlestar is Least Concern while Mourning Cloak is Critically Endangered.

Taxonomic Classification

Rank	brittlestar	Mourning Cloak
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Echinodermata (棘皮动物门)	Arthropoda (节肢动物门)
Class	Ophiuroidea (蛇尾纲)	Insecta (昆蟲綱)
Order	Amphilepidida (阳遂足目)	Lepidoptera (鱗翅目)
Family	Amphiuridae	Nymphalidae (Brush-footed Butterflies)
Genus	Amphiura	Nymphalis
Species	Amphiura filiformis	Nymphalis antiopa

Evolutionary Relationship

brittlestar and Mourning Cloak share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

brittlestar

LC — Least Concern

Mourning Cloak

CR — Critically Endangered

Physical Characteristics

Attribute	brittlestar	Mourning Cloak
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Mourning Cloak

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 9 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (39 countries) and North America (Canada, United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

brittlestar

The Brittlestar (Amphiura filiformis) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Mourning Cloak

哀蛱蝶（Nymphalis antiopa）在 IUCN 红色名录上被列为极度濒危（CR）。由于种群严重减少和栖息地丧失，在野外面临极高的灭绝风险。

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden