FIGURES 223–229 in Entogoniopsis gen. nov. and Trilamina gen. nov. (Bacillariophyta): a survey of multipolar pseudocellate diatoms with internal costae, including comments on the genus Sheshukovia Gleser

FIGURES 223–229. Light micrographs showing the range of morphological variation in Trilamina nitescens. Fig. 223: BM63659, Joe's River, Barbadoes. Fig. 224: BM coll. Adams TS694, frustule, Oamaru, New Zealand. Fig. 225: BM63658, Oamaru, New Zealand. Figs 226–227: BM coll. Adams GC3332, Oamaru, New Zealand. Fig. 228: BM3198, Cambridge, Barbadoes, holotype. Fig. 229: BM61164, Oamaru, New Zealand.