Carrizal Seedeater vs common door snail

Amaurospiza carrizalensis compared with Clausilia bidentata

Key Differences

• Carrizal Seedeater is Critically Endangered while common door snail is Least Concern.

Taxonomic Classification

Rank	Carrizal Seedeater	common door snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Aves (Birds)	Gastropoda (Gastropoda)
Order	Passeriformes (Songbirds)	Stylommatophora (Stylommatophora)
Family	Cardinalidae	Clausiliidae
Genus	Amaurospiza	Clausilia
Species	Amaurospiza carrizalensis	Clausilia bidentata

Evolutionary Relationship

Carrizal Seedeater and common door snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Carrizal Seedeater

CR — Critically Endangered

common door snail

LC — Least Concern

Physical Characteristics

Attribute	Carrizal Seedeater	common door snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Carrizal Seedeater

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

common door snail

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Carrizal Seedeater

The Carrizal Seedeater (Amaurospiza carrizalensis) is a species in the genus Amaurospiza. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types within the Ne

common door snail

<em>Clausilia bidentata</em>, the common door snail, is a terrestrial gastropod mollusk in the family Clausiliidae. This species is distributed across Belgium, Denmark, Norway, and Sweden, where it typically inhabits moist terrestrial environments including deciduous woodlands, rocky slopes, hedgerows, and the margins of freshwater habitats. The common door snail is recognized by its elongated, sinistral (left-handed) shell, which is a distinctive trait of the family Clausiliidae. The shell is typically brown to gray and reaches approximately 12–15 millimeters in length. <em>Clausilia bidentata</em> generally feeds on algae, lichens, fungi, and decaying plant material by rasping food with a radula. It often shelters under bark, stones, and leaf litter during dry or cold conditions. Like many clausiliids, it possesses a complex internal shell structure called a clausilium that closes the shell aperture to reduce desiccation. The species is assessed as Least Concern, reflecting stable populations across its European range. Detailed biological traits beyond those noted here are not extensively documented in the current scientific literature.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway