Abstract: A total of 20,326 fish larvae were collected by IKPT net in June and July, 1994 from 21 stations distributed between 134° and 141°E, and 13° and 18°N, and were identified to 66 families, 109 genera, and 218 species or types. The most dominant family and specie was an engraulid Encrasicholina punctifer followed by Gonostomatidae, Myctophidae, Scombridae and Scopelarchidae. Densities of all fish larvae were higher along 134°E. Densities and ratios to total density of E. punctifer did not show any distinct spatial trend. Numbers of species were higher at north and west. Diversity indices did not show any distinct spatial trend. Percentage similarity indices indicated no distinct faunal area.