So, after all that deep-sea stuff, I thought this week might be a good moment to look at some tropical, shallow-water species....
A fire urchin (probably Asthenosoma) from Puerto Galera, Philippines
Stunning image of the cidaroid Plococidaris verticellata by Shawn Miller
A magnificent anal sac in Astropyga!
I must say that "magnificent anal sac" is a phrase I never thought I'd see. But magnificent they are-- gorgeous pics!
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