Rock-boring urchine (Echinometra mathaei)
(C) Steina Aradottir 2009, Shab Abou Nahas, Egypt
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Camera: 2G | Shutter: 1/100 | Aperture: 7.2 | Real focal length: 5.1 mm | ISO: 64 | Flash: On, Fired | DateTime: 2009-11-06 19:16 | Keywords: Red Sea, UW, Sea urchins, Echinoderms | Album: Red Sea 2009 | Picture in album
Family : Echinometridae (Echinometridae)