A&B = Cell at two focal planes; C = Terminal valve with central process (=arrow); D&E = Endogenous resting spores. (BF)
Life-form: Cells united in chains
Size: Diameter = 13-56 µm
Resting spore: +
Note:
Distinctive features: Large number of inner setae and terminal setae arranged in a umbrella-like fashion
Similar species: B. furcatum
Distribution: Widely in temperate waters
Literature:
Drebes, G. 1974. Marines Phytoplankton, Eine Auswahl der
Helgoländer Planktonalgen (Diatomeen, Peridineen). Georg Thieme
Verlag, Stuttgart. 186 pp.
Hasle, G. R. & Syvertsen, E. E. 1996. Marine diatoms. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 5-385.