What are these in the sea?

What are these dotted ball shaped things I circled in yellow in the image?

I thought they may be sea urchin skeletons. Though the things in the image may be too many and too large?

They are in a mural in Brighton, England. The subject is "Protecting Costa Rican Wildlife", so I guess they are of some native species there.

29 points · 7 comments · view on lemmy.world

7 Comments

roawre@feddit.ch · 25 pts · 2y (2 replies)

Urchin shells

e0qdk@kbin.social · 4 pts · 2y

To be more specific on the terminology they are sea urchin tests: https://en.wikipedia.org/wiki/Test_(biology)

HeartyBeast@kbin.social · 3 pts · 2y

Yes, missing the spines.

bstix@feddit.dk · 6 pts · 2y (1 reply)

Yes they look like sea urchin. However, the live ones look like the black shapes.

Devi@kbin.social · 4 pts · 2y

Not all urchins look like that, there's a lot of different types

TheGreenGolem@lemm.ee · 2 pts · 2y

Fun fact: we call them "sea hedgehogs" in Hungarian.

xenspidey@lemmy.zip · -3 pts · 2y

Jellyfish maybe?