Hemidiscaceaea Hendey

Al-Handal, Adil Y., Compère, Pierre & Criobe-Usr, Catherine Riaux-Gobin, 2016, Marine benthic diatoms in the coral reefs of Reunion and Rodrigues Islands, West Indian Ocean, Micronesica 2016 (3), pp. 1-78 : 4

Family Hemidiscaceaea Hendey

Actinocyclus cf. bipartitus A. Mann (Pl. 1, Fig. 3) References: Desikachary 1988, pl. 406, figs 2, 4-6.

Features: Diameter 32-38 µm, areolae 10 in 10 µm.

Remarks: This species looks similar to A. octonarius var. sparsus (Greg.) Hendey (Stidolf et al. 2012, pl. 4, fig. 92) but radiation of areolae on the valve face of this taxon looks more scattered and not arranged in clear radiating sectors.

Occurrence: Rare in Rodrigues Island. Previously reported from Mauritius (D).