original description(ofCymbella aequalis var. oblonga Fontell, 1917)Fontell, C.W. (1917). Süsswasserdiatomeen Ober-Jämtland in Schweden. Arkiv för Botanik, 14(21): 68 pp., 2 pls page(s): p. 23; pl. 2, fig. 40 [details]
new combination referenceRoss, R. (1947). Fresh water Diatomeae (Bacillariophyta). <em>Botany of the Canadian Eastern Arctic II. N.V. Polunin (ed.). National Museum of Canada Bulletin.</em> 97: 178-233, 3 pl. page(s): p. 220 [details] Available for editors [request]