Clanculus undatus

Trochidae
Wavy Top Shell
  • Clanculus undatus, Orford,TAS, Photo: Graham Edgar
    Clanculus undatus, Orford,TAS, Photo: Graham Edgar
  • Clanculus undatus, Photo: Graham Edgar
    Clanculus undatus, Photo: Graham Edgar
Distribution
Temperate Australasia
Description
Shell being squat and rounded in shape, with a beaded spiral sculpture, and having one or more prominent teeth on the columella. Numerous rows of fine granules around the shell and a red-brown basal colour with darker spots. The animals remain in crevices and under rocks during the day but move about quite rapidly in the open at night.
Information
  • Max Size: 3 cm
  • Sea Temperature Range: 10.3-20.7°C
  • Depth: 0-15m
  • Habitat: Rocky Reef
Rarity
  • IUCN Threat Status: Not Evaluated
  • Occurrence: Infrequent (9% 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: Several (5 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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