Lithodesmium undulatum Ehrenberg
Division: Chromophyta
Class: Bacillariophyceae
Order: Biddulphiales
Suborder: Biddulphiineae
Family: Lithodesmiaceae H. and M. Péragallo emend Simonsen
Genus: Lithodesmium Ehrenberg
Scientific name: Lithodesmium undulatum Ehrenberg