Crab Species Id Resources

Donya

Crazy Crab Lady
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Sometime over a year ago I bookmarked a great site for crab IDs (proper Brachyurid crabs, not hermits). At the time I was searching for Portunids and Xanthids, but it seemed to have a pretty diverse collection of photos including Mithracids if my memory is correct. After reformatting my PC, I seem to have missed that site in my bookmark backup (along with a number of other...oh well). It was the only site I'd found with such a vast array of crab species photos, and it came it quite handy on a number of occasions for IDing local species. However, I can't seem to dig up the darned thing again. I dug through the threads here and then went google searching for ages with no luck. Does anyone have a clue which site I'm referring to, and if so, does it still exist?

I must admit the reason I ask now is that a particular LFS had a little beastie referred to as "the white emerald crab," so you can probably guess where said beastie is living now (which is, of course, also by himself - I know the nature of true crabs well enough). I can't seem to find another decent species photo resource that covers Mithracids in detail, so I'm sorely missing that bookmark. I'd post pics, but I imagine an ID would require more than an angry claw sticking out of the rockwork.
 
Sorry not sure on the site, but a white emerald crab I would guess is an emerald crab that has had no algae to eat, as there colour comes from eating algae if fed with Nori or something similar I bet he turns well back to an emerald "emerald crab" but I could be wrong :)

I know this as my emerald starting losing his green until I was advised to feed him some nori.
 
Sorry not sure on the site, but a white emerald crab I would guess is an emerald crab that has had no algae to eat, as there colour comes from eating algae if fed with Nori or something similar I bet he turns well back to an emerald "emerald crab" but I could be wrong :)

I know this as my emerald starting losing his green until I was advised to feed him some nori.

I wondered if diet could play a part in the color, but it's not devoid of color or just very pale green. It's fairly mottled, just in reds, browns, and yellows that are lighter on the carapace (which looks white-ish as a result in bright light). If anything, it looks like a washed out version of what I've seen labeled as Mithraculus forceps, but I'm unsure of whether the claws are a match since I can't find a decent top-view M. forceps photo for comparison. The overall claw shape and inner prongs on the claws are also not a match for other adult M. sculptus I've seen, but that may be something that changes with age/size.
 

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