FIGURES 177–182. Figs. 177–178. Lyrella lyra. Fig. 177 in Diatoms (Bacillariophyta) From Artificial Substrates And Sediments In The Caribbean Sea Off Yucatan, Mexico

FIGURES 177–182. Figs. 177–178. Lyrella lyra. Fig. 177. LM valve view. Fig. 178. SEM valve view. Fig. 179. L. approximata. Figs. 180–181. L. exsul. Fig. 4. LM valve view. Fig. 5. SEM valve and internal view. Fig. 182. Navicula clavata var. distenta. Scale bar = 10 μm.