• Codonomonas vangoorii: W.Conrad (1938)
• Calycomonas wulfii: Conrad e Kufferath (1954)

The cell is biflagellate, oval-shaped and surrounded by a yellow-brown lorica. The anterior part of the lorica is cylindrical while the posterior part is conical. There are clearly visible striae on the surface.

Marine and brackish environments.

Distribution: as Calycomonas wulffii: Europe: Britain (Parke & Dixon, 1976).

As Calycomonas vangoorii: Europe: Britain (Parke & Dixon, 1976); Australia and New Zealand: New Zealand (Harper et al., 2012).

Check-list of British marine algae - third revision., Journal of the Marine Biological Association of the United Kingdom 56, Parke M., Dixon P.S., 1976, 527-594.

Phylum Ochrophyta: brown and golden-brown algae, diatoms, silicioflagellates, and kin., In: New Zealand inventory of biodiversity. Volume Three. Kingdoms Bacteria, Protozoa, Chromista, Plantae, Fungi. (Gordon, D.P. Eds), Christchurch: Canterbury University Press., Harper M.A., Cassie Cooper V., Chang F.H., Nelson W.A. e Broady P.A., 2012, 114-163