Thank, brother @vannour. This is the first time I saw a very beautiful photography. Animal pictures posted in this post are "keureungkong" in our language. And geurugoh. The difference "keurukong" and "geurugoh" is the size alone. But these two animals live on land and at the end. There is something unique about this animal "geurugoh when we approach him he will run very fast, and keureungkong when taung water into the hole (residence) he will come out.
We can find the immortality in the community environment under the house of aceh or near the wall of the house, or other places. Different from geurugoh, this animal looks like a crab, but its size is small and run fast. We can not bear to pursue it. We will be tired and tired of making it. Thank again @broher. You have reminded me of my childhood days while on the beach "pasi sukon and mantak tari. simpang tiga. pidie.