PsammogobiusPsammogobius is a genus of fish in the family Gobiidae found in the Atlantic, Indian and Pacific Ocean.SpeciesThere are currently 4 recognized species in this genus:Psammogobius biocellatus Psammogobius knysnaensis J. L. B. Smith, 1935 Psammogobius pisinnus Allen, 2017 Psammogobius viet Prokofiev, 2016