Achnanthes elliptica var. pungens A.Cleve
Achnanthes elliptica var. pungens in Societas Scientiarum Fennica. Commentationes Biologicae 4(14): 38, pl. 2, fig. 40. 19341
is basionym for Skabitschewskia pungens in Lake Baikal: Hotspot of endemic diatoms II. Iconographia Diatomologica, 26: 85. 2015