Plate 46

Description:

Plate 46. Prorocentrum micans. Figs. 1-3. SEM. Fig. 1. Right valve: cell tear-drop shaped; rounded anteriorly, pointed posteriorly, broadest in the middle. Apical spine (AS) winged. Rugose thecal surface. Intercalary band smooth and wide. Fig. 2. Heart-shaped cell. Apical spine missing. Fig. 3. Periflagellar area: small, shallow triangular depression on right valve. Flagellar (f) and auxiliary (a) pores present; curved periflagellar plate adjacent to f. Large winged AS directly opposite. Figs. 4-5. LM: Left valve. Winged AS visible. Fig. 5. Empty theca with visible trichocyst pores (arrows). Fig. 6 Line drawing: trichocyst pore arrangement.