Thalassiothrix longissima Cleve et Grunow
Division: Chromophyta
Class: Bacillariophyceae
Order: Bacillariales
Suborder: Fragilariineae
Family: Thalassionemataceae Round in Round et al.
Genus: Thalassiothrix Cleve et Grunow
Scientific name: Thalassiothrix longissima Cleve et Grunow