Proboscia alata f. gracillima
Division: Chromophyta
Class: Bacillariophyceae
Order: Biddulphiales
Suborder: Rhizosoleniineae
Family: Rhizosoleniaceae De Toni
Genus: Proboscia Sundström
Scientific name: Proboscia alata f. gracillima (Cleve) Licea et Moreno