Aplysia dactylomela

Spotted sea hare
Aplysia dactylomela
Aplysia dactylomela, Canary Islands, Photo: Natali Lazzari
Aplysia dactylomela
Aplysia dactylomela, Photo: Rick Stuart-Smith
Aplysia dactylomela
Aplysia dactylomela, Albany, WA, Photo: Olivia Johnson
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Aplysia dactylomela
Aplysia dactylomela
Aplysia dactylomela


Temperate Australasia, Temperate northern Atlantic, Tropical Atlantic/Caribbean


Olive background colour with black rings and a network of fine black lines over the body, this species is confined to the tropical and subtropical Atlantic.

The very similar Aplysia argus is an Indo-Pacific species (previously considered to be Aplysia dactylomela).


Max Size: 25 cm

Sea Temperature Range: 15.3-25.1°C

Depth: 0-15m

Habitat Generalization Index: N/A

Also referred to as the SGI (Species Generalisation Index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here.

Conservation and Rarity

IUCN Status: Not Evaluated

Occurrence: Infrequent (2.1% of sites)

Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed

Abundance: Few (2 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.

Edit by: Andrew Green