Dinoflagellates in tropical estuarine waters from the Maraú River, Camamu Bay, northeastern Brazil Author Nunes, Caio Ceza da Silva Author Susini-Ribeiro, Sylvia Maria Moreira Author Cavalcante, Kaoli Pereira text Check List 2019 2019-10-25 15 5 951 963 http://dx.doi.org/10.15560/15.5.951 journal article 10.15560/15.5.951 1809-127X Prorocentrum scutellum Schröder, 1900 Figure 6B Brazil , estuary of Maraú River: Coastal Zone Station 4, 13°54′56″S , 038°58′57″W , X.2006 (HUESC 24045) Cell subcircular, larger diameter in the central portion of the valve; antapex rounded; one anterior winged spine curved towards the dorsal side. CL: 31.8 μm, CW: 27.3 μm, SL: 2.5 μm ( n = 1) Distribution in Brazil : coastal regions of Amapá , Pará , Rio Grande do Norte , Bahia , Espírito Santo , Rio de Janeiro , Santa Catarina , and Rio Grande do Sul ( Flora do Brasil 2019 ).