Identification

Bleakeleya notata (Grunow in Van Heurck) Round is one of several "necklace forming" diatoms present in Guam benthic assemblages. It is loosely associated with seaweeds and elsewhere has often been collected from the plankton. B. notata is a widespread species, and apparently unique in this group in having many small plastids. The valve face has a distinctive bracket-like -- } -- thickening separating the basal pore field from the rest of the cell, readily visible in acid cleaned valves. The basal pole is inflated and there is an additional inflated area. The basal pore field consists of several straight or slightly curved apical rows in the middle with several radiating rows towards the margin.
Literature: Körner 1970 (as Asterionella notata); Round et al. 1990.

Projects This is Associated With

Western Pacific Diatoms Project

Last Updated

Added by Chris Lobban on February 22, 2009, 5:02 am
Last edited by Chris Lobban on February 22, 2009, 5:45 am

Photos

Bleakeleya notata	Bleakeleya notata	Bleakeleya notata	Bleakeleya notata--valve, SEM
Bleakeleya notata--girdle, SEM	Bleakeleya notata--detail of poles, SEM	Bleakeleya notata valve LM	Bleakeleya notata whole mount, basal pole copulae, SEM
Bleakeleya notata, live cell in valve view