common greasewort vs Leopard-spotted swellshark

Aneura pinguis compared with Cephaloscyllium fasciatum

Key Differences

common greasewort is Least Concern while Leopard-spotted swellshark is Critically Endangered.

Taxonomic Classification

Rank	common greasewort	Leopard-spotted swellshark
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Chordata (Chordates)
Class	Jungermanniopsida (Jungermanniopsida)	Chondrichthyes (Cartilaginous Fish)
Order	Metzgeriales (Metzgeriales)	Carcharhiniformes (Ground Sharks)
Family	Aneuraceae	Scyliorhinidae
Genus	Aneura	Cephaloscyllium
Species	Aneura pinguis	Cephaloscyllium fasciatum

Conservation Status

common greasewort

LC — Least Concern

Leopard-spotted swellshark

CR — Critically Endangered

Physical Characteristics

Attribute	common greasewort	Leopard-spotted swellshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

common greasewort

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (United States), and South America (Brazil, Colombia).

Leopard-spotted swellshark

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

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

common greasewort

<em>Aneura pinguis</em>, commonly known as common greasewort, is a liverwort belonging to the genus Aneura within the family Aneuraceae. This cryptogamic plant inhabits ecosystems across Asia, Europe, and North America, thriving in moist or waterlogged environments. Its range encompasses Taiwan in Asia, six European countries, the United States in North America, and Brazil and Colombia in South America, indicating a broad geographic distribution across multiple continents. Common greasewort is assessed as Least Concern on the IUCN Red List. The species typically forms flat, ribbon-like thalli in damp habitats such as stream banks, wet rocks, and boggy ground. Biological traits of this species remain poorly documented in the scientific literature.