Tripos muelleri Bory, 1827

Nunes, Caio Ceza da Silva, Susini-Ribeiro, Sylvia Maria Moreira & Cavalcante, Kaoli Pereira, 2019, Dinoflagellates in tropical estuarine waters from the Maraú River, Camamu Bay, northeastern Brazil, Check List 15 (5), pp. 951-963 : 954-955

Tripos muelleri Bory, 1827

Figure 2D

Brazil, estuary of Maraú River: Mixing Zone Station 3, 13°57′24″S, 038°59′38″W, III.2007 (HUESC 24064); Coastal Zone Station 4, 13°54′56″S, 038°58′57″W, XI. 2006 (HUESC 24049), II.2007 (HUESC 24061), III.2007 (HUESC 24065), VII.2007 (HUESC 24081).

Large cell, asymmetrical triangular epitheca abruptly tapered into a straight and cylindrical apical horn, cingulum excavated, hypotheca with two well-developed antapical horns directed anteriorly, almost parallel to the apical horn, the right antapical horn is closer to the hypotheca than the left one. TL: 200–250 μm (227.75 ± 18.20 μm), EL: 192.5–200 μm (182.5 ± 12.08 μm), CW: 60–75 μm (67.75 ± 5.06 μm), RAH: 60–125 μm (84.75 ±

17.73 μm), LAH: 87.5–132.5 μm (105 ± 15.5 μm), AH: 117.5–162.5 μ m (140 ± 14.95 μm), HL: 35–50 μm (40.5 ± 5.63 μm) (n = 5).

Distribution in Brazil: widely distributed along the Brazilian coastal region; cited as Ceratium tripos (Müller) Nitzsch ( Flora do Brasil 2019).