Observed off Playa Escondida between 12 and 25 m depth, with the fish seen poised 10-20 cm above small mounds encircling the small openings to their burrows. These gobies were unassociated with reefs, and were instead grouped in small colonies on gently sloping mud-sand bottoms usually hundreds of meters from any rocky substrata and quinaldine was used to obtain three juvenile specimens which had darted into the same burrows as adults (Ref. 75966).