Fiona B.'s picture

Is the one on the right a starfish too?

Observed: 24th March 2013 By: Fiona B.
Starfish
Description:

Took this photo of what I think are two different kinds of dead starfish on a freezing Old Hunstanton beach. I'm not at the seaside often, so can anyone confirm that the one on the right definitely is a starfish, and what type it is, as I can't find it in my seaside identification book, or online? It was swept away immediately, but I think it was about 4 inches in diameter.

Identifications
Species interactions

No interactions present.

Comments

Robert Durrant's picture

Starfish

The conventional-looking one is almost certainly the Common Starfish (Asterias rubens); whereas the other, though new to me, is clearly a Sunstar (Family Solasteridae), very likely the Common Sun Star (Crossaster papposus). Unusual in having uniformly attenuated arms (you might expect one or two like that if they were regrowing after injury, but not all, surely); but I think that's a good bet.

ChrisMcA's picture

The other sunstar Solaster

The other sunstar Solaster endeca has a much less coarse surface than papposus, & never these big 'spots'. This, at 4" is a baby -they reach 35 cm, which may account for the short arms.

Fiona B.'s picture

sunstar papposus

Yes, it's definitely the "sunstar papposus". I agree that it must have been a baby one. Thanks to both of you for your comments!

Robert Durrant's picture

Excellent! Thanks, Fiona.

Excellent! Thanks, Fiona.

gramandy's picture

spent...

....all my Summertime Sundays at Hunstanton as a kid - loved it shrimp collecting and then cooking/eating. Loved the stop off on the way home at the pub (Plough & Harrow). More to the point definitely Sunstar.