Rhizosolenia hebetata Bailey f. semispina (Hensen) Gran 1904

A&B = End of cell with process (arrow=otaria); C = Two ends (dry preparation). (A=PC, B&C=DIC)

Synonym(s): Rhizosolenia semispena Hensen 1887

Life-form: Solitary or in pairs

Size: Diameter = 4.5 -25 µm

Resting spore:

Note: See taxonomical discussion in Sundström (1986)

Distinctive features: Pointed otaria extending at least 3 µm along the basal part of the process

Similar species: Rhizosolenia antennata f. semispena R. clevei var. communis

Distribution: Northern cold-water region

Sundström, B. G.1986. The marine genus Rhizosolenia. Doctoral Dissertation, Lund University, Lund, Sweden. 117 pp.

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Last modified on 15 September, 2006

Swedish Meteorological and Hydrological Institute


Department of Marine Ecology, Göteborg University, Sweden