Rhizosolenia sp

Division: Chromophyta
Class: Bacillariophyceae
Order: Biddulphiales
Suborder: Rhizosoleniineae
Family: Rhizosoleniaceae De Toni
Genus: Rhizosolenia (Ehrenberg) Brightwell
Scientific name: Rhizosolenia sp.

Description:
Cells thin, cylindrical. Valves conical, only slightly oblique. Apical process long,fine, straight spine. Cell wall thin, weakly siliceous, without distinct or visible structure. Chromatophores numerous, small.

Dimensions:
Cells 7-9 µm in diameter, 220-260 µm in length.

Sites of occurrence in RSA:
In Winter 2006 Cruise, this species was present in small numbers at scattered stations (refer sites map).