common sea hare vs

Aplysia punctata compared with Usnea cornuta

Key Differences

• common sea hare is Least Concern while is Near Threatened.

Taxonomic Classification

Rank	common sea hare
Kingdom	Animalia (동물)	Fungi (균계)
Phylum	Mollusca (연체동물)	Ascomycota (자낭균류)
Class	Gastropoda (복족강)	Lecanoromycetes (요강버섯강)
Order	Aplysiida (Aplysiida)	Lecanorales (레카노라목)
Family	Aplysiidae	Parmeliaceae
Genus	Aplysia	Usnea
Species	Aplysia punctata	Usnea cornuta

Conservation Status

common sea hare

LC — Least Concern

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

common sea hare

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Usnea cornuta는 Parmeliaceae과에 속하는 수지형 지의류로, 준위협(NT)으로 평가됩니다. 나뭇가지와 잔가지에 매달리는 덤불 모양의 엽상체를 형성하며, 주로 습한 산림 환경에서 서식합니다. 모든 Usnea 속 종과 마찬가지로 대기 오염, 특히 이산화황에 매우 민감하여 대기 질의 유용한 생물 지표종으로 활용됩니다.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden