Green Granny's picture

Not quite a sea urchin.

Observed: 19th April 2012 By: Green GrannyGreen Granny’s reputation in Invertebrates
Not quite a sea urchin.
Description:

About the size of a golf ball.

Identifications
Species interactions

No interactions present.

Comments

davidcareyhadlow's picture

Not quite a sea urchin

We used to call these sand dollars, these may be the skeletons.

Syrphus's picture

Usually 'sand dollar' is

Usually 'sand dollar' is applied to other echinoderms in the Clypeasteroida, not especially closely related to urchins. They are much flatter. We have one in the group in UK , Echinocyamus pusillus, but that is only 1cm long.

M.

PS - I meant to add that the heart urchins are sometimes known as 'sea potatoes' for fairly obvious reasons.

TRY

recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.

Green Granny's picture

Many thanks everyone.

Many thanks everyone.