Blue star vs thick-lipped risso snail

Amsonia orientalis compared with Rissoa membranacea

Key Differences

• Blue star is Critically Endangered while thick-lipped risso snail is Least Concern.

Taxonomic Classification

Rank	Blue star	thick-lipped risso snail
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Mollusca (Mollusks)
Class	Magnoliopsida (Dicots)	Gastropoda (Gastropoda)
Order	Gentianales (Gentianales)	Littorinimorpha (Littorinimorpha)
Family	Apocynaceae	Rissoidae
Genus	Amsonia	Rissoa
Species	Amsonia orientalis	Rissoa membranacea

Conservation Status

Blue star

CR — Critically Endangered

thick-lipped risso snail

LC — Least Concern

Physical Characteristics

Attribute	Blue star	thick-lipped risso snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue star

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

thick-lipped risso snail

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.

Blue star

The Blue star (Amsonia orientalis) is a species in the genus Amsonia. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.