What is this crab?

[MarMerCIan24]

I posted this crab on Reddit and got multiple suggestions, there’s a little bit of an argument in the comments.

What is this crab. He is at least 3 years old, though he was this same size when we got him. He lived with a mantis shrimp and some fish; also some soft coral but never did any damage to them. When he’s not being messed with, he’s usually a purply/red color, always has the white spots. He’s rounder bodied, not flat if that makes sense.


Help me ID

 

[shakacuz]

no idea what it could be. google lens and my google sleuthing managed to find nothing.

came across calico crab, sea-cucumber crab, strawberry crab- but nothing that resembles this.

 

[ReeferHD]

That's a cool crab! looks like it could be Zosimus Maculatus. or a related species, though the patterning doesn't look exactly the same as yours, but this should help you with IDing it I hope. I also found another post trying to ID what looks to be the same type of crab. https://www.reef2reef.com/threads/killer-crab.22049/

 

[Sophie"s mom]

WOw! Don't know but it sure is beautiful! Maybe @ISpeakForTheSeas can come in and comment! I will be following to find out!

 

[dakoop]

 

[BZOFIQ]

I read somewhere you can look at its claw structure to see if they are cutters or pinchers to decide if you want to possibly keep it. I'd throw it in the sump of fuge for now.

 

[ISpeakForTheSeas]

WOw! Don't know but it sure is beautiful! Maybe @ISpeakForTheSeas can come in and comment! I will be following to find out!

Definitely a Zosiminid (taxonomic subfamily Zosiminae) crab of some kind (lots of these are quite pretty); I've seen a similar one before, but it's not identified:
https://www.meerwasser-lexikon.de/tiere/3220_Zosiminae.htmRegardless, being in the Xanthid family, it's not reef-safe.

 

[Crabs+Shrimps-69]

Looks to be a harlequin crab