Pleurosigma diversestriatum Meister (Figure 83)

Literature: (Hendey 1970, p. 152, pl. 6, fig. 62; Sterrenburg 2001, p. 124, figs. 6, 15–18).

Description: Length 71–75 µm, width 15–18, oblique striae at the center 19–21 in 10 µm. Oblique striae cross each other at ca 65° at the center and the raphe curvature is about 19°. Ecology and distribution: This marine species has only been reported from warm waters in tropical and subtropical regions. Its occurrence, although rare in Antarctica, may expand its environmental preferences.