Ditylim brightwellii (West) Grunow ex Van Heurck
Division: Chromophyta
Class: Bacillariophyceae
Order: Biddulphiales
Suborder: Biddulphiineae
Family: Lithodesmiaceae H. and M. Péragallo emend Simonsen
Genus: Ditylum Bailey
Scientific name: Ditylim brightwellii (West) Grunow ex Van Heurck