Marine benthic diatoms in the newly discovered coral reefs, off Basra coast, Southern Iraq Author Al-Handal, Adil Y. Department of Biological and Environmental Sciences, University of Gothenburg, Sweden Author Thomas, Evan W. Biology Department, Waubonsee Community College, Sugar Grove, Illinois, USA Author Pennesi, Chiara Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italia text Phytotaxa 2018 2018-10-12 372 2 111 152 http://dx.doi.org/10.11646/phytotaxa.372.2.1 journal article 10.11646/phytotaxa.372.2.1 1179-3163 13728822 Cyclotella stylorum Brightwell (1860: 96) ( Fig. 3 ) References : Brightwell 1860 , pl. 6, fig. 16; Krammer & Lange-Bertalot 1991 , p. 46, pl. 59, fig. 6; Desikachary 1988 , pl. 560, figs 1,2,5, 10; Hendey, 1970 , p.112, pl. 6, fig. 68. Features : Diameter 36–60 μm, marginal striae 13–15 in 10 μm. Description : Valves circular, central area slightly undulate to nearly flat, coarsely punctate. Marginal striae radiate, occupy 1/3 the distance to valve center. Ecology and Distribution : Widely distributed brackish water and marine species, more common in warm waters. Previously known from the Gulf ( Hendey 1970 ). Frequent in Basra corals.