The Echinoid Directory

Strongylocentrotus purpuratus (Stimpson, 1857)

• Common name: English - Purple (sea) urchin, German - (Langstachliger) Purpur-Seeigel, French - Oursin violet
• Systematics: Strongylocentrotidae, Echinoida
• Distribution: Alaska to California
• Diet: Omnivorous, opportunistic scavenger, attracted to Macrocystis kelp, detritus
• Feeding type: Grazer, scavanger
• Habitat: Exposed areas
• Depth range: Littoral - 65 m
• Maximum test size: 100 mm
• Behaviour: Epifaunal

• Model

• Aboral, lateral and oral views

• MRI image slices

• Strongylocentrotus droebachiensis (from Agassiz 1872)

• http://www.nhm.ac.uk/research-curation/projects/echinoid-directory/taxa/taxon.jsp?id=992

• Specimen ID: 5724 California Academy of Sciences Invertebrate Zoology, San Francisco
  
• Expedition: -
• Collected in: 1972, Morro Bay, San Luis Obispo, California, Pacific Ocean
• Collected by: J.T. Carlton
• Identified by: J.T. Carlton
• Specimen test size: 2.3 cm
• Scanning location: Berlin 7T
• Scanning solution: Aqua dest. + Magnevist
• MRI dataset resolution: (81 µm)³

• Agassiz, A. 1872. Revision of the Echini. Illustrated Catalogue of the Museum of Comparative Zoology 7.