What a day, saw two new crabs in my tank!

[nxb161]

Ok, the first one I found when i had my lights off this morning while acclimating a fish, It is fairly small, green, and looked quite bumpy, it was moving slow until it saw me then quickly dashed away. I know the picture is really horrible, only had my camera with me.

The second one was just a few minutes ago, this one looks to be black with some red on him. He hides in the shadows between a couple rocks.

I've read before about the shot glass trick to trap them, but I really don't want to go that far, just if someone can identify them from these pics.
Thanks!

 

[mr_X]

can you pick them out in this lineup?
Crab Hitch Hikers

 

[nxb161]

Thanks so much, I was actually looking for a crab ident. page. I did a quick look and wasn't able to ID them, but I'll take some time tomorrow to see if I can find them, and match it up.

 

[iDream]

maybe the green one is an emerald?

 

[nxb161]

No, it looked too "bumpy" to be an emerald (I do have an emerald in the tank, but its a bit bigger, and I knew where it was at the time)