FIGURES 2–8. Figs. 2–3. Actinoptychus aster. Fig. 2 in Diatoms (Bacillariophyta) From Artificial Substrates And Sediments In The Caribbean Sea Off Yucatan, Mexico

FIGURES 2–8. Figs. 2–3. Actinoptychus aster. Fig. 2. SEM view of external valve face. Fig. 3. LM in valve view. The arrows indicate the external tube of labiate process. Figs. 4–5. A. senarius. Fig. 4. SEM view of internal valve face. Fig. 5. LM in valve view. The arrows indicate the external tube of labiate process. Fig. 6. Podosira stelligera. Fig. 7. Ehrenbergiulva granulosa. Fig. 8. Hyalodiscus laevis. Scale bar = 10 μm.