Coronia impressa (Grunow) Ruck & Guiry

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 : 52

79. Coronia impressa (Grunow) Ruck & Guiry ( Fig. 160 )

Synonym: Campylodiscus impressus Grunow.

Type locality: Baleares .

Reference: Schmidt et al. 1874–1959, pl. 51, fig. 10.

Morphometrics: Valves 30 μm long, 30 μm wide, and transapical ribs 10.7 in 10 μm.

Remarks: Coronia impressa was reported from Portobello Bay of New Zealand ( Wood 1961), and from Hooghly Estuary of Bay of Bengal, India ( Mukherjee et al. 2013). This taxon is listed on the catalogue of British marine diatoms ( Hartley & Williams 1986) and on the phytoplankton list of east Adriatic Sea ( Viličić et al. 2002). Few collection sites are known. It is a subtropical taxon found in warmer marine waters. It is found rarely along the Seogwipo coast, Jeju Island, and thus represents a new record for South Korea.

Figures

FIGURES 157–164. Diatom taxa of Seogwipo coast in Jeju Island (16). Figs 157–159. Campylodiscus ralfsii. Fig. 160. Coronia impressa. Figs 161–163. Campylodiscus brightwellii. Fig. 164. C. biangulatus. Scale bars = 10 μm.