Spiny Starfish Spiny Starfish – Marthasterias Glacialis. Rate this:Share this:EmailFacebookTwitterPinterestTumblrLike Loading... Related July 19, 2013January 9, 2014 by Stu Knowler Categories: Beach, Canon G12, Coastal, Devon, Environment, Low Tide, WelcombeTags: Atlantic Coast, Beach, Canon G12, Coast, Coastal, Coastline, Devon, Environment, Lowtide, My Right Eye, Welcombe Mouth