- Porphyridium aerugineum Geitler 1923
- Porphyridium griseum Geitler 1970
- =Dixoniella grisea (Geitler) J.L. Scott, S.T. Broadwater, B.D. Saunders, J.P. Thomas & P.W. Gabrielson 1992
- Porphyridium purpureum (Bory de Saint-Vincent) K.M. Drew & R. Ross, 1965
- =Sarcoderma sanguineum C.G. Ehrenberg
- =Byssus purpurea Lamarck 1778
- =Phytoconis purpurea Bory de Saint-Vincent 1797
- =Olivia cruenta S.F. Gray 1821
- =Porphyridium cruentum (S.F. Gray) Nägeli 1849
- =Porphyridium marinum Kylin 1937
- Porphyridium sordidum Geitler 1932
- Porphyridium violaceum Kornmann 1965
- =Rhodella violacea (Kornmann) Wehrmeyer 1971
- Guiry, M.D. (2001). Macroalgae of Rhodophycota, Phaeophycota, Chlorophycota, and two genera of Xanthophycota, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 20–38
- Sheath, R.G. (2003). Red Algae. In: Freshwater Algae of North America, Ecology & Classification. (Wehr, J.D. & Sheath, R.G. Eds), pp. 197–224. San Diego: Academic Press.
- R.G. Sheath. The most recent alteration to this page was made on 23 Feb 2005 by Robert Wilkes.
- Yoon, H.S., Muller, K.M., Sheath, R.G., Ott, F.D. & Bhattacharya, D. (2006). Defining the major lineages of red algae (Rhodophyta). Journal of Phycology 42: 482-492.
