A Taxonomic Study of Euglena (Euglenophyceae) from Brackish-Water Regions in Japan

Abstract

Seven culture strains of Euglena originating from brackish-water regions in Japan were identified as E. salina, E. agilis var. striata and E. viridis var. maritima, based on morphological features by light microscopy. These three taxa are newly found in Japan. During this study, it became evident that E. salina has chloroplasts each with a naked pyrenoid and E. agilis var. striata inhabits not only fresh water but also brackish water.