Pathogenic Amoebas from Brackish and Ocean Sediments, with a Description of Acanthamoeba hatchetti , n. sp.

Abstract
Acanthamoeba culbertsoni was isolated from a sewage-spoil dump site near Ambrose Light, New York Bight. A second species, Acanthamoeba hatchetti, n. sp., was isolated from Brewerton Channel, Baltimore Harbor, Maryland. Both species killed laboratory mice after infection by the intranasal route.