Irrawaddy dolphin vs thick-lipped risso snail

Orcaella brevirostris compared with Rissoa membranacea

Key Differences

• Irrawaddy dolphin is Endangered while thick-lipped risso snail is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	thick-lipped risso snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Cetacea (Whales & Dolphins)	Littorinimorpha (Littorinimorpha)
Family	Delphinidae (Oceanic Dolphins)	Rissoidae
Genus	Orcaella	Rissoa
Species	Orcaella brevirostris	Rissoa membranacea

Evolutionary Relationship

Irrawaddy dolphin and thick-lipped risso snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Irrawaddy dolphin

EN — Endangered

thick-lipped risso snail

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	thick-lipped risso snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

thick-lipped risso snail

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.