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

amphidromous Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousa ...

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 (biology), family of bony fish in the order (biology), order Gobiiformes, one of the largest fish families comprising over 2,000 species in more than 200 genus, genera. Most of gobiid fish are relatively small, typ ...

Appearance

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

caninus Fish of Thailand Fish of Malaysia Fish of the Philippines Fish of Indonesia Taxa named by Achille Valenciennes Fish described in 1837 {{gobiidae-stub