vs common sea hare

Biddulphia rhombus compared with Aplysia punctata

Key Differences

is Not Evaluated while common sea hare is Least Concern.

Taxonomic Classification

Rank		common sea hare
Kingdom	Chromista (크로미스타)	Animalia (동물)
Phylum	Ochrophyta (대롱편모조식물)	Mollusca (연체동물)
Class	Bacillariophyceae (원시배선규조류)	Gastropoda (복족강)
Order	Biddulphiales (실패돌말목)	Aplysiida (Aplysiida)
Family	Biddulphiaceae	Aplysiidae
Genus	Biddulphia	Aplysia
Species	Biddulphia rhombus	Aplysia punctata

Conservation Status

NE — Not Evaluated

common sea hare

LC — Least Concern

Physical Characteristics

Attribute		common sea hare
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Sweden, and Taiwan.

common sea hare

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Biddulphia rhombus는 돌출된 뿔 모양의 융기를 가진 뚜렷한 양극성, 마름모형 내지 넓은 피침형 밸브 형태를 가진 중심성 해양 규조류입니다. 전 세계 온난 온대해의 연안 부유성 및 저서 환경에 서식합니다. 이 광합성 규조류는 연안 근해 해양의 일차 생산에 기여합니다.

common sea hare

<em>Aplysia punctata</em>, the common sea hare, is a large opisthobranch sea slug in the family Aplysiidae, order Aplysiida, found in the northeastern Atlantic Ocean and Mediterranean Sea, with confirmed records from Denmark, Norway, Portugal, and Sweden. This species typically inhabits shallow subtidal and intertidal zones with abundant macroalgae, feeding primarily on red and green algae — a diet that influences the color of the defensive purple ink it secretes when threatened. <em>Aplysia punctata</em> is a simultaneous hermaphrodite, capable of acting as both male and female during mating, and often forms mating chains involving multiple individuals. It can reach considerable size among European opisthobranch species, though body dimensions vary considerably with age and feeding conditions. The species is classified as Least Concern by the IUCN, reflecting stable populations across its coastal range. Biological traits for this species remain poorly documented in the scientific literature, including precise average data on lifespan, body length, weight, and detailed seasonal dietary patterns, though its general herbivorous feeding on macroalgae is well established.