Crab ID

[michael-taal]

I caught this crab this morning. I suspect it belongs to the Xanthidae family, but I am not entirely sure. It hitched a ride on live Bali rock. I can clearly see some small hairs on it, and its carapace is quite rough.

 

[Cael Gallery]

It's a 'Hairy Crab' from the family Pilumnidae. It closely resembles Benthopanope eucratoides, which is known from Indonesian waters. They may feed on very small fish, shrimp, or snails, so it's best to put it in the sump. This one looks fully grown so it won't get any bigger.