The cells form colonies of short straight chains of between two and six cells. In girdle view the valve, which has a high mantle, appears hexagonal, with a central process linking adjacent cells. In valve view it appears elliptical to circular in shape, with pores arranged randomly on the surface. On each valve, in a non-central position there is a rimoportula with a short external tubule. Both the intercalary and the terminal setae originate from the corners of the cells; they have a short basal section, do not touch each other and are perpendicular to the axis of the colony. In cross section they have 4-5 sides and large spines on the edges. There are numerous chloroplasts in both the cell and the setae.

Common in warm waters.

Distribution: in Europe: Croatia (Vilicic et al. 2009); in Asia: Russia (Shevchenko et al. 2006).

Remarks on the marine Diatomaceae found at Hong Kong, with descriptions of new species., Transactions of the Microscopical Society of London, New Series 12, Lauder H.S., 1864, 75-79. .

The genus Chaetoceros (Bacillariophyta) from Peter the Great Bay, Sea of Japan., Botanica Marina 49:, Shevchenko O.G., Orlova T.Y.,Hernandez-Becerril D.U., 2006, 236-258.

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