Campylodiscus fastuosus Ehrenberg, 1845

Joh, Gyeongje, 2021, Distribution and frequent occurrence of diatom taxa (Bacillariophyta) inhabiting warmer oceans in Seogwipo coast of Jeju Island, southernmost Korea, Phytotaxa 517 (1), pp. 1-67 : 48

75. Campylodiscus fastuosus Ehrenberg ( Figs 153, 154 , 219 )

Synonym: Campylodiscus parvulus W. Smith; Campylodiscus thuretii Brébisson ; Campylodiscus thuretii var. simulans (Gregory) Tempere & Peragallo.

Type locality: Ad Pulo Pinang Indiae marit.

References: Hendey 1964, p. 290, pl. 40, fig. 4; Choi & Noh 1987, p. 104, figs 73–76; Stidolph et al. 2012, pl. 6, figs 132, 136, pl. 21, fig.

14; Lobban 2015, p. 3, figs 13, 14, 16, 18–20.

Morphometrics: Valves 26–35 (16–34) μm long, 28–36 μm wide, apical ribs 3–4 in 10 μm, transapical striae in the middle parts of valve, 11 (14) in 10 μm.

Remarks: Campylodiscus fastuosus was found frequently in all North Seas as a common marine species ( Hendey 1964). This taxon has been reported from many regions: the coast of Quebec of Canada ( Bérard-Therriault et al. 1986), the coastal lagoons of western Portugal ( Resende et al. 2005), the Galapagos Islands ( Stidolph et al. 2012), a lagoon of Vladivostok in the East Sea, Russia ( Begun & Zvyagintsev 2013), the coast of Baja California Peninsula in Mexico ( Siqueiros-Beltrones & Argumedo-Hernández 2014; López-Fuerte et al. 2015), Guam ( Lobban 2015), and recently Singapore strait ( Tan et al. 2016). It is widely distributed in tropical and subtropical as well as temperate regions. In South Korea, this taxon was reported in the coast of Gyeongju by Choi & Noh (1987) in Korea, and currently rare in the Seogwipo coast of Jeju Island.

Figures

FIGURES 146–156. Diatom taxa of Seogwipo coast inJeju Island(15).Figs 146–149.Nitzschia fluminensis. Figs 150–152.Campylodiscus stellatus. Figs 153, 154. C. fastuosus. Figs 155, 156. Coronia samoensis. Scale bars = 10 μm.

FIGURES 219–223. Diatom taxa of Seogwipo coast in Jeju Island (23). Fig. 219. Campylodiscus fastuosus: external view of valve. Fig. 220. Campylodiscus ralfsii: internal view of valve. Fig. 221. Diploneis notabilis: internal view of valve. Figs 222, 223. Campylodiscus neofastuosus: internal (Fig. 222) and external view of valve (Fig. 223). Figs 219–223: SEM. Scale bars = 10 μm (Figs 219, 222, 223), 5 μm (Fig. 221), 2.5 μm (Fig. 220).