Seiche gros dos vs Casseron

Sepia savignyi compared with Sepia officinalis

Key Differences

• Seiche gros dos is Data Deficient while Casseron is Not Evaluated.

Taxonomic Classification

Rank	Seiche gros dos	Casseron
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Mollusca (mollusques)	Mollusca (mollusques)
Class same	Cephalopoda (Cephalopods)	Cephalopoda (Cephalopods)
Order same	Sepiida (seiche)	Sepiida (seiche)
Family same	Sepiidae	Sepiidae
Genus same	Sepia	Sepia
Species	Sepia savignyi	Sepia officinalis

Evolutionary Relationship

Seiche gros dos and Casseron share a common ancestor at the Genus level: Sepia.

Conservation Status

Seiche gros dos

DD — Data Deficient

Casseron

NE — Not Evaluated

Physical Characteristics

Attribute	Seiche gros dos	Casseron
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Seiche gros dos

Casseron

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Seiche gros dos

The Broadback cuttlefish (Sepia savignyi) is a species in the genus Sepia. It is currently classified as Data Deficient on the IUCN Red List.

Casseron

<em>Sepia officinalis</em>, the common cuttlefish, is a cephalopod mollusk belonging to the family Sepiidae. This remarkable marine invertebrate is found across the coastal waters of Europe, including Belgium, Denmark, Norway, and Sweden, where it typically inhabits shallow sandy or muddy sea floors as well as seagrass beds and rocky reefs. The common cuttlefish is celebrated for its exceptional ability to rapidly change skin color and texture, a trait used both for camouflage and communication. It possesses a unique internal shell called the cuttlebone, which functions as a buoyancy organ. <em>Sepia officinalis</em> is a carnivore, often preying upon small crustaceans, fish, and other invertebrates using its two elongated tentacles alongside eight shorter arms. The species typically employs jet propulsion for locomotion and can release ink to evade predators. Lifespan in the wild generally ranges from one to two years, with reproduction occurring in spring and summer in nearshore waters. The common cuttlefish plays an important ecological role as both predator and prey in coastal marine ecosystems.