Echinostrephus aciculatus

Echinometridae
Sea Urchin
  • Echinostrephus aciculatus, Lord Howe Is, NSW, Photo: Andrew Green
    Echinostrephus aciculatus, Lord Howe Is, NSW, Photo: Andrew Green
  • Echinostrephus aciculatus, North WA, Australia, Photo: Andrew Green
    Echinostrephus aciculatus, North WA, Australia, Photo: Andrew Green
Distribution
Tropical Indo-Pacific
Description
A small urchin with very fine spines that lives in holes in the reef, usually in aggregations amongst sand-covered, flatter parts of reef.  It is largely impossible to distinguish from E. molaris, and is likely confused with that species often. The information and occurrence records on this page should generally be used to cover both of these species.
Information
  • Max Size: 2 cm
  • Sea Temperature Range: 19.1-30.7°C
  • Depth: 1 - 30 m
  • Habitat: Coral Reef
Rarity
  • IUCN Threat Status: Not Evaluated
  • Occurrence: Common (32% 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: Many (29 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: Rick S-S
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