Common cuttlefish vs Guinean cuttlefish

Sepia officinalis compared with Sepia elobyana

Key Differences

• Common cuttlefish is Not Evaluated while Guinean cuttlefish is Data Deficient.

Taxonomic Classification

Rank	Common cuttlefish	Guinean cuttlefish
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Mollusca (มอลลัสกา)	Mollusca (มอลลัสกา)
Class same	Cephalopoda (ชั้นเซฟาโลพอด)	Cephalopoda (ชั้นเซฟาโลพอด)
Order same	Sepiida (หมึกกระดอง)	Sepiida (หมึกกระดอง)
Family same	Sepiidae	Sepiidae
Genus same	Sepia	Sepia
Species	Sepia officinalis	Sepia elobyana

Evolutionary Relationship

Common cuttlefish and Guinean cuttlefish share a common ancestor at the Genus level: Sepia.

Conservation Status

Common cuttlefish

NE — Not Evaluated

Guinean cuttlefish

DD — Data Deficient

Physical Characteristics

Attribute	Common cuttlefish	Guinean cuttlefish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common cuttlefish

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Guinean cuttlefish

Common cuttlefish

<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.