Anyone Know What These Are ?

Fished Seascale Cumbria last Wednesday and blanked good style but i did find these all over the beach.



Think the seagulls had eaten some



Then I spotted this one moving



Sorry about the poor quality but it was on my phone   

I've never seen them before anyone Know what they are  

Looks like it maybe a Sea Urchin.  

It's the husk of a heart urchin I think,

They live just below the sand and tend to die in numbers, the inside bit is really brittle, it breaks easily, which has as much to do with the name as the shape!

I did a link on a report after finding loads at Splash three or four years ago I think

I called it a sea ferby but I didn't think it was quite right   

Yes they are heart urchins, they live just under the surface in wet soft sand near and below low tide, they feed on algae in the sand. You will sometimes see a ridge in the sand as a live one moves walking with its spines and tube feet.

Thanks for that