Light microscopy identification notes

Girdle View: Cylindrical cells with straight sides and rounded ends. The nucleus may be seen lying close to the edge of the cell, with flat and long chloroplasts radiating from it. Spines project from the ends of the cells: On one end the spines are long and point out from between 90 degrees to nearly parallel to the long sides of the cell. On the opposite end, there are long spines that generally point in the same direction as the aforementioned spines, and shorter spines ending in hooks that point in the opposite direction. Diameter in brackets from my observations.

Pervalvar axis (length) (um)	Diameter (um)
20 - 150	12 - 38 (42)

References

Crawford, R. M. and Hinz, F. (1998) 'Three species of the diatom genus Corethron Castracane: Structure, distribution and taxonomy', Diatom Research, 13(1). pp. 1 - 28.

Hasle, G.R., and Syvertsen, E.E. (1997) Identifying Marine Phytoplankton. pp. 141. Edited by C.R. Tomas. San Diego: Academic Press.

Hoppenrath, M., Elbrächter, M., Drebes, G. (2009) Marine Phytoplankton. pp. 73. Edited by Prof. Dr. Dr. h.c. Volker Mosbrugger. Stuttgart: E. Schweizerbart’sche Verlagsbuchhandlung (Nägele u. Obermiller)