The Silicoflagellate Genus Octactis Schiller 1925: A Synonym of the Genus Distephanus

Abstract
Silicoflagellate specimens referable to the genus Octactis Schiller were examined from suspended particle and sediment trap samples recovered from the Panama Basin, near the Hawaiian Islands [USA] and in the equatorial Atlantic. The observations on skeletal structures indicate that the genus Octactis is best considered a synonym of the genus Distephanus.