Monster Shrimpgoby

Found singly, or in pairs, sharing their burrow with the blotched snapping shrimp Alpheus bellulus, over rubble and sandy areas, of clear water, protected rubble flats and slopes of reefs.

Shrimp Gobies live a symbiotic relationship with snapping shrimps.
The Gobies stand guard while the shrimps play "housekeeper" to their burrow, continually digging and cleaning the sand. The Gobies will signal when predators are near.