tiny risso snail vs marreca-parda

Rissoa parva compared with Anas georgica

Key Differences

• tiny risso snail is Least Concern while marreca-parda is Endangered.

Taxonomic Classification

Rank	tiny risso snail	marreca-parda
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Moluscos)	Chordata (cordados)
Class	Gastropoda (Gastrópodes)	Aves (ave)
Order	Littorinimorpha (Littorinimorpha)	Anseriformes (Anseriformes)
Family	Rissoidae	Anatidae
Genus	Rissoa	Anas
Species	Rissoa parva	Anas georgica

Evolutionary Relationship

tiny risso snail and marreca-parda share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

tiny risso snail

LC — Least Concern

marreca-parda

EN — Endangered

Physical Characteristics

Attribute	tiny risso snail	marreca-parda
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

tiny risso snail

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

marreca-parda

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (6 countries) and South America (Colombia, Ecuador). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

marreca-parda

O marreco-de-bico-amarelo (Anas georgica) está classificado como Em Perigo (EN) na Lista Vermelha da IUCN. Com alto risco de extinção na natureza, com declínio populacional significativo e ameaças contínuas à sua sobrevivência.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway