What sort of crab is this?

[REEFsnap]

It was sold as a emerald but it’s not green

 

[...]

Not sure, looks like a porcelain maybe. What is its behavior?

 

[Imnotjakeyv]

Might be about to molt but looks like an emerald crab to me. From what I understand sometimes they just aren’t green. But for sure just make sure it’s eating and that your parameters are good as crabs do use calcium and such for their shells.

 

[REEFsnap]

It just hangs out on the live coral picking away at things.

 

[fishguy242]

hi, pointy claws ,i'd sump him

 

[KJ]

It was sold as a emerald but it’s not green

Mithrax crab.

 

[Wes10C]

Ive always been told if a crab is hairy, they are no good

 

[REEFsnap]

Mithrax crab.

Thank you!

 

[Mr_Knightley]

It was sold as a emerald but it’s not green

That is a red mithrax (darn @KJ you beat me to it!), It's closely related to the emerald crab and shares the same habits and preferred diet.

 

[KJ]

Thank you!

YW.

 

[...]

Wish Australians could get these crabs.