Distinguished from its close relative N. angustata by a shell that is relatively high, usually with numerous chestnut spots speckled across a white or fawn surface, and by the living animal possessing a white or grey mantle. Restricted populations with white shells are also known.
Information
Max Size: 3 cm
Sea Temperature Range: 11.7-20.4°C
Depth: 0-10m
Rarity
IUCN Threat Status: Not Evaluated
Occurrence: Infrequent (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: Solitary (1 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney
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