Stowaway Crab

[HumuhumuFan]

This little guy was in a bag of hermits I ordered. He's about 1-2cm across. His front claws are pretty long comparatively and very symetrical. Maybe a porcelain crab? Does not look like the mithrax that came in a separate bag.

 

[KrisReef]

“Sally lightfoot”

 

[Soren]

This little guy was in a bag of hermits I ordered. He's about 1-2cm across. His front claws are pretty long comparatively and very symetrical. Maybe a porcelain crab? Does not look like the mithrax that came in a separate bag.

I definitely first thought porcelain crab, but it is hard to tell in this picture. There are different species that look similar, but this one definitely seems to fit the same category as the commonly-called "porcelain" crab.

Are the legs spiky almost like hair or are they mostly smooth? I cannot tell in the image.
How colorful is this crab under different types of lighting?

“Sally lightfoot”

This term is used for a common name for several different types of crabs, but I think the crab in question does not seem to me to match the most common "Sally Lightfoot" crab Percnon gibbesi. I've got 2 in my work desk system about 3" across the legs. This species looks much more spider-like with longer, thinner legs and smaller front claws than the crab in question pictured above.

Edit: A quick look-up on LiveAquaria for "Porcelain Crabs" shows a Caribbean variety with a close match from their picture to yours:
Porcelain Crab (Petrolisthes galathinus)

Porcelain Crab: Saltwater Aquarium Invertebrates

 

[kjkszpj9]

Its a porcelain crab, you can see it only has 3 pairs of legs, the 4th pair are hidden at the back and are used for cleaning itself