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Actaeodes or something very similar. There are hundreds of these little xanthids & many species don't have easily accessed images so it's not...
That's a sphaeromatid isopod, a micro-grazer, and harmless. It's the marine equivalent of the roly-poly/pill bug in the garden. It's much easier to...
Sponge. A lot of the sponges that live under rocks are pretty undefined in shape.
The first one is a clump of colonial ascidians maybe in the genus Botryllus or Botrylloides. These are filter feeders that remove particulates from...
Actually the pod is an isopod in the family Munnidae. Very hard to identify, they're usually called munnid isopods. They are micro-grazers & fine...
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