Campylodiscus biangulatus Greville, 1862

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

73. Campylodiscus biangulatus Greville ( Fig. 164 )

Type locality: Ceylon .

References: Schmidt et al. 1874–1959, pl. 14, fig. 18; Williams 1988, p. 21, pl. 26, figs 3, 4, Stidolph et al. 2012, pl. 47, figs 1, 6.

Morphometrics: Valves 85 (80–120) μm long, 81 (79–108) μm wide, ribs 1.4 in 10 μm.

Remarks: Campylodiscus biangulatus was reported from Celebes of Indonesia and Yokohama of Japan (Schmidt et al. 1874–1959), Samoa (Schmidt et al. 1874–1959; Stidolph et al. 2012), Tahiti ( Ricard 1977) and Hainan and Fujian of China ( Jin et al. 1985). It is reported from a few localitions in warmer oceans. In South Korea, this taxon is very rarely epiphytic on the seaweeds of Seogwipo coast in Jeju Island, and thus represents a new record for 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.