common sea hare vs Name-shishi-take

Aplysia punctata compared with Sarcodon leucopus

Key Differences

• common sea hare is Least Concern while Name-shishi-take is Near Threatened.

Taxonomic Classification

Rank	common sea hare	Name-shishi-take
Kingdom	Animalia (動物)	Fungi (菌界)
Phylum	Mollusca (軟体動物)	Basidiomycota (担子菌門)
Class	Gastropoda (腹足綱)	Agaricomycetes (真正担子菌綱)
Order	Aplysiida (Aplysiida)	Thelephorales (イボタケ目)
Family	Aplysiidae	Bankeraceae
Genus	Aplysia	Sarcodon
Species	Aplysia punctata	Sarcodon leucopus

Conservation Status

common sea hare

LC — Least Concern

Name-shishi-take

NT — Near Threatened

Physical Characteristics

Attribute	common sea hare	Name-shishi-take
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.

Name-shishi-take

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, 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.

Name-shishi-take

Sarcodon leucopusはひだや管孔の代わりに傘の裏面に淡色の刺(歯)が密生した肉質の褐色の傘を持つハリタケである。ヨーロッパの温帯および亜寒帯林で針葉樹および広葉樹と外生菌根共生関係を形成する。準絶滅危惧に指定されており、窒素沈着と老齢原生林生息地の消失に敏感である。

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden