common sea hare vs Hime-butana

Aplysia punctata compared with Hypochaeris glabra

Key Differences

common sea hare is Least Concern while Hime-butana is Critically Endangered.

Taxonomic Classification

Rank	common sea hare	Hime-butana
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Mollusca (軟体動物)	Magnoliophyta (被子植物門)
Class	Gastropoda (腹足綱)	Magnoliopsida (モクレン綱)
Order	Aplysiida (Aplysiida)	Asterales (キク目)
Family	Aplysiidae	Asteraceae (Daisy Family)
Genus	Aplysia	Hypochaeris
Species	Aplysia punctata	Hypochaeris glabra

Conservation Status

common sea hare

LC — Least Concern

Hime-butana

CR — Critically Endangered

Physical Characteristics

Attribute	common sea hare	Hime-butana
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.

Hime-butana

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and Mediterranean forests and woodlands, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (India, Japan, Taiwan), Europe (5 countries), North America (4 countries), Oceania and the Pacific (Australia), and South America (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.