Pleurobranchus hilli

Hills side-gill slug
Pleurobranchus hilli
Pleurobranchus hilli, Port Stephens, NSW, Photo: Nicola Davis
Pleurobranchus hilli
Pleurobranchus hilli, Port Stephens, NSW, Photo: Tom Davis
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Pleurobranchus hilli
Pleurobranchus hilli


Temperate Australasia


Colour varies from orange to dark purple. Body covered in rounded papillae. Can grow up to 30cm.


Max Size: 30 cm

Sea Temperature Range: 16.4-22.6°C

Depth: N/A

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 (1.5% 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: Solitary (1 per transect)

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