Rhizosolenia hebetata f. semispina (Hensen) Cleve
Division: Chromophyta
Class: Bacillariophyceae
Order: Biddulphiales
Suborder: Rhizosoleniineae
Family: Rhizosoleniaceae De Toni
Genus: Rhizosolenia (Ehrenberg) Brightwell
Scientific name: Rhizosolenia hebetata f. semispina (Hensen) Cleve