FIGURES 183–188. Fig. 183. Petroneis marina. Figs. 184–185. P. plagiostoma. Fig. 184 in Diatoms (Bacillariophyta) From Artificial Substrates And Sediments In The Caribbean Sea Off Yucatan, Mexico

FIGURES 183–188. Fig. 183. Petroneis marina. Figs. 184–185. P. plagiostoma. Fig. 184. LM valve view. Fig. 185. SEM valve view. Fig. 186. Lyrella approximatoides. Fig. 187. L. diffluens. Fig. 188. L. clavata var. caribaea. Scale bar = 10 μm.