Help ID crabs

[bossteck]

Should this be in invertibrates, vivarium or marine? Can't decide.

Caught these crabs during my 'expedition' at Changi boardwalk this morning.

Can someone help to id them?

[thePractce]

1) Swimmer Crab (Swift Mover Esp. the claws)
2) POSSIBLY a red egg crab (Occasionally Poisonous)
3) Stone crab (Only Claws are edible)

I like to go to the beach to look at marine life during low tide so i know a little about crabs...

[cdckjn]

If you cacth these ar the board walk, then it is mostly marine crabs. I agreed that the above ID, although the 1st crab is a different kind of swimmer crab from those that we eat for seafood.

[bossteck]

Thanks! The third one also called thunder crab right?

[stormhawk]

bossteck, pm guqin and ask him. He's from NUS I think and an invert expert.