''Acentrogobius caninus'', also known as the tropical sand goby or green-shouldered goby, is an amphidromous

benthopelagic The demersal zone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and significantly affected by) the seabed and the benthos. The demersal zone is just above the benthic zone and forms a layer of ...

species of fish in the family

Gobiidae Gobiidae or gobies is a family of bony fish in the order Gobiiformes, one of the largest fish families comprising more than 2,000 species in more than 200 genera. Most of gobiid fish are relatively small, typically less than in length, and the ...

. It is endemic throughout the Indo-West Pacific and found in marine, fresh, and brackish water. It is recognisable by its grey body with brown markings across its body, as well as the distinct dark green spot above its pectoral fins.

References

{{Taxonbar, from=Q2177193 caninus Fish of Thailand Fish of Malaysia Fish of the Philippines Fish of Indonesia Taxa named by Achille Valenciennes Fish described in 1837