Amebic Parasites of Fishes*

Abstract
SYNOPSIS.Entamoeba molaen. sp. was found in the hindgut ofMola molacollected from the coast of southern California. The trophic stages are actively motile and contain numerous food vacuoles. The nuclear peripheral chromatin is usually conspicuous. A subperipheral crescent of granules is the most distinctive feature of the nucleus. The endosome is eccentric and often surrounded by a periendosomal ring. Measurements: cell body 16.4 × 22.9 μ nucleus 4.8 μ in diameter. Cysts were not seen. We believe that few amebas have been described from fishes because few fishes have been examined for amebas.