Achnanthes dispar var. fontellii A.Cleve
Achnanthes dispar var. fontellii in Kongl. Svenska Vetenkapsakad. Handl. 4(4/5): 69. 1953
is basionym for Platessa fontellii, Lake Baikal: Hotspot of endemic diatoms II. Iconographia Diatomologica, 26: 69. 2015