I saw this uncommon lobster at KNT which is listed as a threatened animal in Singapore, it was on a sandbank on the other side of KNT. I then took a few shots of this and then both the staff and myself moved it to the otherside where mud is available.
If you have been to any mangrove habitat and you saw volcano like stuff on the mud, yes! It's made my a mud lobster! More infomation about this facinating creature is available at http://www.wildsingapore.com/chekjawa/text/m321.htm