crab hitchhiker on coral

[bmoons]

i picked up a pink birds nest (seriatopora hystrix) colony today, a little one, and found a small red and orange spotted crab in its branches. i cant identify it so if anyone has any suggestions as to what species it is that would be great. thanks here are some pics


ill try to get some better close ups tomorrow

 

[chrisstie]

Hard to tell but looks like it has potential to be an acrocrab which are good things He's really smooth looking right>?

 

[bmoons]

yea hes smooth and not hairy at all and never leaves the thing, i figured it was an acro crab as well butjust wanted to make sure
thanks

 

[LeslieH]

Sounds like a Trapezia. These species are obligate commensals and are beneficial for their hosts.