Common Ink Cap vs Pacific Spiny-rat

Coprinopsis atramentaria compared with Proechimys decumanus

Key Differences

• Common Ink Cap is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Common Ink Cap	Pacific Spiny-rat
Kingdom	Fungi (فطر)	Animalia (حيوانات)
Phylum	Basidiomycota (دعاميات)	Chordata (حبليات)
Class	Agaricomycetes (غاريقونانية)	Mammalia (ثدييات)
Order	Agaricales (غاريقونيات)	Rodentia (قوارض)
Family	Psathyrellaceae	Echimyidae
Genus	Coprinopsis	Proechimys
Species	Coprinopsis atramentaria	Proechimys decumanus

Conservation Status

Common Ink Cap

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Common Ink Cap	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Ink Cap

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

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

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Ink Cap

<em>Coprinopsis atramentaria</em>, commonly known as the common ink cap, is a saprotrophic fungus in the family Psathyrellaceae. It is classified as Least Concern on the IUCN Red List, with a distribution spanning Asia (including Taiwan), Europe, and North America. The species typically grows on forest floors, buried wood, stumps, and other decomposing woody substrates in temperate regions. As a saprotroph, it plays an important ecological role in breaking down organic matter. The common ink cap is notable for containing coprine, a compound that inhibits aldehyde dehydrogenase and causes unpleasant reactions when consumed with alcohol. Diet information for this species is not available in current records. Biological traits of this species remain poorly documented in the scientific literature.