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This is quite interesting - I would guess it's a pea crab of some variety (probably from the Pinnotherinae subfamily), as they're known to live with a variety of host critters; they typically live with bivalves, but they have been known to branch out heavily including to gastropods (snails).Yesterday I bought this huge snail and I noticed there's a crab in it, am I lucky or is this a harmful hitchhiker?
I took the thing out and let him live, probably a pea crab but it's not in a ball shape. I'll leave him alone I like hitchhikersThis is quite interesting - I would guess it's a pea crab of some variety (probably from the Pinnotherinae subfamily), as they're known to live with a variety of host critters; they typically live with bivalves, but they have been known to branch out heavily including to gastropods (snails).
Some are considered commensal while others are parasitic (to my currently somewhat limited knowledge on it, the parasitic ones feed on the host while the commensal ones don't) - they basically live on the gills of the snail.
I wouldn't expect too many issues from the crab, but given that it might be parasitic, you may want to try and remove it if possible.
Yeah, not all pea crabs are ball-shaped; if you can get some clear pics of the top (full-body, straight-on from above) and front (face/claws), then I can try and ID it more specifically.I took the thing out and let him live, probably a pea crab but it's not in a ball shape. I'll leave him alone I like hitchhikers