Eutreptiella is a marine euglenid with chloroplasts and characteristic eyespot. Euglenids are distinguished, in part, by the ridges under the cell membrane.Scientists say that identifying species within these hard-to-see groups, where they are and in what numbers, and the environmental role of each, is critical for understanding the size, dynamics and stability of Earth's food chain, carbon cycle and other issues. Photograph: D. J. Patterson, L. Amaral-Zettler and V. Edgcomb/MBL. Marine euglenid are unique organism that are classified as Euglenophyta, neither plants or animals, though it has characteristics of both.














