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Turrisphaera Polybotrys sp. nov. (Prymnesiophyceae) from West Greenland

Published online by Cambridge University Press:  11 May 2009

Helge Abildhauge Thomsen
Helge Abildhauge Thomsen
Affiliation:
Institut for Sporeplanter, University of Copenhagen, Ø. Farimagsgade 2D, DK-1353 Copenhagen K., Denmark
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Extract

The genus Turrisphaera Manton, Sutherland & Oates was described on the basis of material from West Greenland, Resolute Bay and South Alaska (Manton, Sutherland & Oates, 1976). In addition to these localities the genus has later been recorded from New Zealand (Moestrup, 1979) and Denmark (Thomsen, unpublished results). The diagnostic characteristics of the genus are the tower-shaped coccoliths and the small hexagonal crystallites. The two species described, the generic type T. borealis Manton, Sutherland & Oates and T. arctica Manton, Sutherland & Oates (Manton et al. 1976), were distinguished by the mucilage covering of T. arctica, and by a certain difference in the elaboration of the distal part of the coccoliths. Furthermore, in T. arctica the flagellar pole coccoliths were longer than the coccoliths elsewhere on the cell (all coccoliths appear equal in T. borealis), and the crystallites somewhat smaller than those of T. borealis.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 60 , Issue 2 , May 1980 , pp. 529 - 537
Copyright
Copyright © Marine Biological Association of the United Kingdom 1980

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References

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