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Some S. dawsoni have a color pattern on the aboral surface, but note there are no blue-gray stripes running down the rays.
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A view of the oral side of S. dawsoni
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Another view of the open mouth, this time underwater through aquarium glass.
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The aboral ossicles or paxillae are well separated. These are magnified.
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The ossicles along the edge of the ambulacral groove (which is at the top in this photo) are enlarged into marginal plates.
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This S. dawsoni is swallowing a Leptasterias hexactis that it captured. Notice also the commensal Arctonoesp polychaete scaleworm on the ray.
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This Solaster dawsoni (left) was found eating this Dermasterias imbricata on the right at low tide. Photo by Brooke Reiswig, July 2006
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A tiny Solaster dawsoni among hydroids. Underwater photo by Kirt Onthank, August 2007
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This small individual is about 2.5 cm in total diameter. Photo by Dave Cowles, July 2012
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The paxillae of the small individual shown above look different from those of adults. The sack-like prejections are papulae. Photo by Dave Cowles, July 2012
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A closeup of the ray tips of the small individual above. Photo by Dave Cowles, July 2012
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Solaster dawsoni collected from near Northwest Island, WA. Scale is in centimeters (Photo by: Dave Cowles, August 2005)
