Tyrinna delicata

Orange Spotted Ballerina | Tyrinna nobilis
Tyrinna delicata
Tyrinna delicata, Chubut, Argentina, Photo: Graham Edgar
Tyrinna delicata
Tyrinna delicata, Antartica Chilena, Chile, Photo: Graham Edgar
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Tyrinna delicata
Tyrinna delicata


Temperate South America


Semi translucent, white nudibranch with orange spots around lower edge of mantle, two white rhinopores at front and a tuft of white gills on rear of back. AKA Tyrinna nobilis. More information at http://www.seaslugforum.net/find/tyrinobi.


Max Size: N/A cm

Sea Temperature Range: 3-19°C

Depth: 0-30m

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: Common (28.6% 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.