Bursa verrucosa

Bursa verrucosa
Bursa verrucosa, 1 of 2. Lord Howe Is, NSW, Photo: Andrew Green
Bursa verrucosa
Bursa verrucosa, 2 of 2. Lord Howe Is, NSW, Photo: Andrew Green
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Bursa verrucosa
Bursa verrucosa



Solid shell, apical whorls with spiral ridge of large black nodules, three nodular ridges on final whorl, outer lip pink to cream with about 10 teeth, inner lip with fine red grooves. Length to 5.7cm.


Max Size: 6 cm

Sea Temperature Range: 19.1-24.8°C

Depth: 0-14m

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 (9.5% 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: Few (2 per transect)

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

Edit by: Andrew Green (from GJE TMLA)