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Diagnostic features

Large pennate diatoms, cigar or boat shaped in valve view, rectangular in girdle view, with pronounced chambered striae.  Two golden-brown chloroplasts per cell.

Typical habitats

Some NZ species are common in muddy or wetland habitats


Kingdom Chromista
Phylum Ochrophyta
Class Bacillariophyceae
Order Naviculales
Family Pinnulariaceae
Common name Diatoms