Smith, W. (1855). Notes of an excursion to the south of France and the Auvergne in Search of Diatomaceae. Annals and Magazine of Natural History, 2nd series,, 15: 1-9, pl. 1. page(s): p. 6; pl. 1, fig. 4 [details]
Kociolek, J.P.; Blanco, S.; Coste, M.; Ector, L.; Liu, Y.; Karthick, B.; Kulikovskiy, M.; Lundholm, N.; Ludwig, T.; Potapova, M.; Rimet, F.; Sabbe, K.; Sala, S.; Sar, E.; Taylor, J.; Van de Vijver, B.; Wetzel, C.E.; Williams, D.M.; Witkowski, A.; Witkowski, J. (2025). DiatomBase. Gomphonema elongatum var. elongatum W. Smith, 1855. Accessed at: https://www.diatombase.org/aphia.php?p=taxdetails&id=974958 on 2026-06-30
original descriptionSmith, W. (1855). Notes of an excursion to the south of France and the Auvergne in Search of Diatomaceae. Annals and Magazine of Natural History, 2nd series,, 15: 1-9, pl. 1. page(s): p. 6; pl. 1, fig. 4 [details]