Atlantic Ancula vs Common Script Lichen

Ancula gibbosa compared with Graphis scripta

Taxonomic Classification

Rank	Atlantic Ancula	Common Script Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (moluscos)	Ascomycota (Sac Fungi)
Class	Gastropoda (gastrópodos)	Lecanoromycetes (Lecanoromycetes)
Order	Nudibranchia (Nudibranchia)	Ostropales (Ostropales)
Family	Goniodorididae	Graphidaceae
Genus	Ancula	Graphis
Species	Ancula gibbosa	Graphis scripta

Conservation Status

Atlantic Ancula

LC — Least Concern

Common Script Lichen

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Ancula	Common Script Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Ancula

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Denmark, Norway, and Sweden.

Common Script Lichen

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia).

Atlantic Ancula

The Atlantic Ancula (Ancula gibbosa) is a species in the genus Ancula. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Common Script Lichen

<em>Graphis scripta</em>, the common script lichen, is a crustose lichen in the family Graphidaceae, order Graphidales, with a cosmopolitan distribution spanning Asia, Europe, North America, and South America. This species grows as a flat, tightly attached crust on the smooth bark of deciduous trees in humid, shaded woodland habitats, where it is often among the most frequently encountered bark lichens. The distinctive feature of <em>Graphis scripta</em> is its elongated, script-like apothecia — black, slit-like fruiting bodies that resemble ancient writing and give the species its common name. As a lichen, it represents a stable mutualistic association between a fungal partner (mycobiont) and photosynthetic algal or cyanobacterial partners (photobionts). The species is listed as Least Concern by the IUCN, reflecting its wide distribution and tolerance across a range of forested habitats. It is considered sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality. Biological traits for this species remain poorly documented in the scientific literature, including data on growth rates, lifespan, and detailed ecological interactions beyond its known substrate preferences.