Petroneis plagiostoma (Grunow) D. G. Mann

Al-Handal, Adil Y., Torstensson, Anders & Wulff, Angela, 2022, Revisiting Potter Cove, King George Island, Antarctica, 12 years later: new observations of marine benthic diatoms, Botanica Marina (Warsaw, Poland) 65 (2), pp. 81-103 : 89

Petroneis plagiostoma (Grunow) D. G. Mann ( Figure 41 )

Literature: ( Hustedt 1961 –66, p. 700, fig. 1694a,b; Witkowski et al. 2000, p. 329, pl. 102, figs. 5–6).

Description: Length 38–56 µm, width 20–25 µm, striae 11– 12 in 10 µm, areole 10–11 in 10 µm.

Ecology and distribution: A widely distributed marine littoral species. Common in Potter Cove.

Figures

Figures 39–59: Marine benthic diatoms in Potter Cove, King George Island, Antarctica, summer 2015. (39) Lyrella hennedyi. (40) Petroneis sp. (41) Petroneis plagiostoma. (42) Staurophora sp. (43–46) Achnanthes cf. groenlandica, (43, 44) raphe valve, (45) sternum valve, (46) two cells in girdle view. (47) Cocconeis californica. (48) Cocconeis californica var. kerguelensis. (49) Cocconeis costata var. hexagona. (50) Cocconeis dallmannii. (51) Cocconeis fasciolata. (52) Cocconeis imperatrix. (53) Cocconeis matsii. (54, 55) Cocconeis melchioroides. (56–59) Cocconeis orbicularis, (56, 59) sternum valve, (57, 58) raphe valve.