G. M.  Dias and Rodrigues, S. A., ?Didemnum tetrahedrm sp. nov a new Didemnum (Tunicata: Ascidiacea) species from south-eastern Brazil.?, Journal of the Marine Biological Association of the United Kingdom, vol. 84, pp. 1227-1228, 2004.

T. M. C.  Lotufo and Dias, G. M., ?Didemnum galacteum, a new species of white didemnid (Chordata: Ascidiacea: Didemnidae) from Brazil.?, Proceeding of the Biological Society of Washington, vol. 120, pp. 137-142, 2007.