there are two types of starfish here a common starfish and bloody henery
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is a genus with starfish aka Bloody Henry. There are two species, distinguished by the spines which in H. sanguinolenta end in a cluster of long spikes not covered by skin; the other species is H. oculata whose spines end in a cluster of rather short points covered by thick skin. I think the larger of the two starfish in this photo is one of these species. Both are recorded from the area of St Abbs.
Yes, I agree with Jo. I suspect the larger is >>Henricia oculata<<
Lat/Lng: 54.8831, -3.6733
OS grid ref: NX927555