Astralium tentorium, 1 of 2. Rottnest Is, WA, Photo: Andrew Green
Astralium tentorium, 2 of 2. Rottnest Is, WA, Photo: Andrew Green
A tent-shaped shell from the west coast with variable height / width ratio. Distinguish from the very similar east coast A tentoriiforme by location; also the operculum in A tentorium is opalescent and the aperture has a more pronounced mauve tint.
Max Size: 5 cm
Sea Temperature Range: 18.2-24.3°C
Habitat: Rocky Reef
IUCN Threat Status: Not Evaluated
Occurrence: Common (24% 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 (4 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.