Pterosperma cristatum Schiller 1925

Whole phycoma-stage and details of alae (DIC)


Life-form: Phycoma phase and solitary flagellate

Size: Diameter=7-25 µm

Resting spore:


Distinctive features: Phycoma with alae forming polygonal compartment on the cell surface and without visible pores

Similar species: Pterosperma marginatum Pterosperma polygonum

Distribution: Widely

Inouye, I. 1990. Prasinophyceae p. 390. In “Red tide organisms in Japan-An illustrated taxonomic guide”.(Y. Fukuyo, H. Takano, M. Chihara & K. Matsuoka eds) Uchida Rokakuho, Tokyo.

Schiller, J. 1925. Die planktonischen Vegetationen des adriatischen Meeres. B. Chrysomonadina, Heterokontae, Cryptomonadina, Eugleninae, Volvocales. 1. Systematischer Teil. Archiv für Protistenkunde. 53: 59-123.

Throndsen, J. 1993. The planktonic marine flagellates. In: (Tomas eds.) Marine Phytoplankton: a guide to naked flagellates and coccolithophorids. Academic Press, San Diego, pp. 7-145.

  Copyright © 1996-2006, Mats Kuylenstierna & Bengt Karlson All rights reserved.
Last modified on 15 September, 2006

Swedish Meteorological and Hydrological Institute

Department of Marine Ecology, Göteborg University, Sweden