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The Waigieu seaperch ( Psammoperca waigiensis), or Waigeo barramundi, is a species of seawater fish in family Latidae of order Carangiformes. The only species of genus Psammoperca, it is native to tropical coastal waters from the Bay of Bengal in the South through Indonesia to northern Australia and north through the Philippines and the South China Sea to Japan.
Reaching a maximum overall length of 47 cm (19 in), P. waigiensis is of brownish to steel-grey colouration, sometimes with white vertical bars along the body. With its typical centropomid body shape, it can be distinguished from the barramundi ( Lates calcarifer) from the same waters by its widely set nostrils and shorter maxilla which does not reach back further than the eye (which is reddish).
The Waigeo "sea perch" occurs primarily among rocks and in , preferring vegetated waters. It is a nocturnal predator, feeding primarily on and other fishes and hiding during the day.
The species is named for Waigeo, an island in Indonesia; the common name is also spelled Waigeo or Weigeu seaperch. It is also known as the sand bass, sand perch, or glasseye perch. The genus name Psammoperca derives from the Greek language ψάμμος (sand) and πέρκη (perch).
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