Biddulphiaceae Kützing

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 : 7

Family Biddulphiaceae Kützing

Biddulphia pulchella Gray (Pl. 2, Fig. 4, Pl. 3, Fig. 4) References: Cupp 1943, p. 152, fig. 109; Subrahmanyan 1946, p. 154, figs 283-284; Witkowski et al. 2000, p. 25, figs 8,9.

Features: Apical axis: 35-45 µm, transapical axis: 30-35 µm, areolae 4-6 in 10 µm. Girdle cylindrical. Valves ellipitic with undulating sides, valve face with coarse round areolae and divided by three or more ribs. Valve poles with subconical processes.

Remarks: A common epiphytic and benthic species widely distributed on marine coasts. Occurrence: Rare in Reunion, frequent in Rodrigues Island. Previously reported from Seychelles (G), and already reported from Rodrigues (D).