Rhoicospheniaceae Chen & Zhu

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 : 16

Family Rhoicospheniaceae Chen & Zhu

Gomphonemopsis cf. lindae Witkowski, Metzeltin et Lange-Bertalot (Pl. 14, Fig. 3) References: Witkowski et al. 2000, p. 221, pl. 61, figs 11-14.

Features: Apical axis 8-10 µm, transapical axis: 2.5-3 µm, striae 26-28 in 10 µm. Valves linear cuneate with bluntly rounded head pole and and slightly arcuate foot-pole. Raphe straight, terminal raphe endings end in a distance from poles, axial area rectangular. Striae uniseriate, slightly radiate. Remarks: The observed specimens were rather small and possess higher stria density than previously reported for this taxon (i.e., 18-24 in 10 µm). Under LM, this species looks very similar to Gomphonemopsis littoralis (Hendey) Medlin but with denser striation.

Occurrence: Rare in Reunion and Rodrigues Islands.