Allorge, Ch. T. & Jahn, T. L., 1943. A survey of the genusPhacus Dujardin.Trans. Amer. Miicr. Soc. 62: 243–244.

Chu, S. P., 1946. Contributions to our knowledge of theEuglena.Sinensia 17: 75–134.

Conrad, W., 1934. Materiaux pour une monographie du genreLepocinclis Perty.Arch. Protistenk. 82: 203–249. (in French)

Deflandre, G., 1924. Additions a la flora algoloique des environs de Paris. III Flagellées.Bull. Soc. Botan. de France.71(4): 1115–1129. (in French)

Drezepolski, R., 1925. Przyczynek do znajomości polskich euglenin. Supplement à la connaissance des Eugleniens de la Pologne.Kosmos 50: 173–250. (in French)

Gojdics, M., 1953. The genusEuglena. The Univ. of Wisc. Press. Madison. 268 pp.

Huber-Pestalozzi, G., 1955. Das Phytoplankton des Süsswassers, 4. Teil: Eulgenophyceen.Die Binnengewässer 16: 1–606. (in German)

Klebs, G., 1883. Ubër die Organization einiger Flagellatengruppen und ihre Beziehungen zu anderen und Infusorien.Untersuchungen aus dem botanischen Institut zu Tubingen.1: 233–362. (in German)

Pochmann, A., 1942. Synopsis der Gattung Phacus.Arch. Protistenk. 95: 81–252. (in German)

Pringsheim, E. G., 1956. Contributions towards a monograph of the genus Englena.Nova Acta Leopoldina 18: 1–168.

Shi, Z., 1986. New taxa of Euglenophyta from Hubei.Acta. Hydrobiol. Sinica. 10: 357–366. (in Chinese)

Shi, Z., 1987. New taxa of Euglenophyta from Western Hube.Acta. Hydrobiol. Sinica. 11: 357–366. (in Chinese)

Shi, Z., 1989. Some new taxa and new records for China of Euglenophyta from Suoxiyu nature presserve area, Hunan.In: Li, S. H. (S. H. Ley) ed.: Algae and Aquatic Animals of Suoxiyu Hature Preserve Area, Hunan, China. Science Press, Beijing pp. 68–77. (in Chinese)

Starmach, K., 1983. Flora Slodkowodna Polski, Tom 3: Euglenophyta. Panstwowe Wydawnictwo Naukowe, Warszawa. 590 pp. (in Polish)