A hermit crab in a broken shell. Only part of the first whorl remains and there is no spiral to shelter the hermit's tender abdomen. This is an older hermit; her carapace is rough and hosts small organisms. She shares the broken shell with a reddish amphipod.
The hermit is mostly green and brown; there's barely a hint of blue at the knees. The shell, what there is of it, is rough and lumpy; the central pillar projects through what would be the second spiral whorl, now without walls, and is snapped off there.
The hermit sits, for now, in a white bowl.
A word of explanation: without traumatizing a hermit, there's no way to determine the sex unless she's carrying young. And she has too much personality (and intelligence) to call her an "it". And "they/them" gets confusing in a community setting. So I alternate between calling them she and he. It's a matter of respect.