The Echinoid Directory

Arbacia lixula (Linnaeus, 1758)

• Common name: English - Black (sea) urchin, German - Mittelmeerseeigel, Schwarzer Seeigel, Italian - Riccio maschio, French - Oursin noir, Spanish - Erizo negro
• Systematics: Arbaciidae, Arbacioida
• Distribution: Mediterranean Sea, Eastearn Atlantic Ocean, Brazil
• Diet: Omnivorous scavenger, algae, sponges
• Feeding type: Bulk feeder
  
• Habitat: On rocks
• Depth range: Littoral - 40 m
• Maximum test size: 80 mm
• Behaviour: Night-active species

• Model

• Aboral, lateral and oral views

• MRI image slices

• Internal anatomy of Arbacia lixula and Arbacia punctulata.

•  http://www.nhm.ac.uk/research-curation/projects/echinoid-directory/taxa/taxon.jsp?id=1505

• Specimen ID: Arbacia lixula var. africana 1952.3.26.31-36 Natural History Museum, London
• Collected in: 1949, Hospital Reef, Axim, Gold Coast, Ghana, Atlantic Ocean
• Collected by: R. Bassindale
  
• Identified by: -
  
• Specimen test size: 1.8 cm
• Scanning location: Würzburg 17.6T
  
• Scanning solution: Aqua dest. + Magnevist
  
• MRI dataset resolution: (44 µm)³
  

• Gegenbaur, C. 1874. Grundriss der vergleichenden Anatomie. Leipzig: Verlag von Wilhelm Engelmann.
• Coe, W. R. 1912. Echinoderms of Conneticut. State. Conneticut: State Geological and Natural History Survey Bulletin No. 19.
  
• Bonnet, A. 1925. Recherches sur l'appareil digestif et absorbent de quelques echinides reguliers. Annales de l'Institut Oceanographique 2(2).