• Lauderia borealis: Gran (1900)

Solitary or joined in straight colonies in which the space between the cells is very small. In girdle view the frustule is rectangular, while in valve view it appears circular. The valve surface has very thin ribs radiating from the central area. On both the valve surface and the margin there are numerous fultoportulae. Distributed throughout the cytoplasm, numerous discoid chloroplasts may be visible.

Marine, typical of warm and temperate waters.

Distribution:  Europe: Croatia (Vilicic et al., 2009); Atlantic Ocean: Canary Islands (Gil-Rodríguez et al., 2003); Antarctic Ocean : Antarctica (Scott and Thomas, 2005).

Diatoms. In: Antarctic marine protists. (Scott, F.J. & Marchant, H.J. Eds), Canberra & Hobart: Australian Biological Resources Study; Australian Antarctic Division, Scott F.J., Thomas D.P., 2005, 13-201.

Examination of diatoms found on the surface of the sea of Java., Bihang Till Konglica Svenska Vetenskaps- Akademiens Handlingar 11:, Cleve P.T., 1873, 3-13

Composition and annual cycle of phytoplankton assemblages in the northeastern Adriatic Sea., Botanica Marina 52(4), Vilicic, Djakovac, Buric, Z. & Bosak, 2009, 291-305.

Proctoctista. In: Lista de especies marinas de Canarias (algas, hongos, plantas y animales). (Moro, L., Martín, J.L., Garrido, M.J. & Izquierdo, I. Eds), Las Palmas: Consejería de Política Territorial y Medio Ambiente del Gobierno de Canarias., Gil-Rodríguez M.C., Haroun R., Ojeda Rodríguez A., Berecibar Zugasti E., Domínguez Santana P., Herrera Morán B., 2003, 5 - 30