“…However, taxonomically its generic position is still controversial, with the further possibility that this species may belong to the genus Pentapharsodinium (Steidinger & Tangen, 1997). Peridinium quinquecorne has a wide geographical distribution, ocurring along the coasts of Belize, Brazil, China, India, Malaysia, Mexico, Japan, Russia, South Africa, Spain, Tunisia, and the USA (Abé, 1981;Dodge, 1985;Konovalova et al, 1989;Horiguchi & Pienaar, 1991;Shamsudin et al, 1996;Tomas, 1998: Trigueros & Orive 2000Turki & El Abed, 2001;Faust et al, 2005;Barón-Campis et al, 2005;Gárate-Lizárraga et al, 2006a;Proença et al, 2006, Okolodkov et al, 2007.…”