FIGURES 20–26 in Gato hyalinus gen. et sp. nov., an unusual araphid tube-dwelling diatom from Western Pacific and Caribbean islands

FIGURES 20–26: Figs 20, 21: Gato hyalinus, SEM. Fig. 20: Head pole showing end of sternum (arrow), radiating striae, and rimoportula (GU44Z-15). Fig. 21: Portion of girdle bands (internal aspect) (Puerto Rico sample). Fig. 22: Florella portoricensis, LM, acid cleaned valve (RMI-M1: 5 m deep, Mile 28, Laura, Majuro Atoll, Marshall Islands). Fig. 23: Florella pascuensis LM, acid cleaned valve, showing a rimoportula (arrow) and one of the rows of transapical slits (arrowhead) (RMI-J5: 1 m deep reef on Kabbenbock Islet, Jaluit Atoll, Marshall Islands). Figs 24–26: Licmophora spp., SEM. Fig. 24: Foot pole of Licmophora proboscidea?, external view showing areolae, rimoportula opening, and multiscissura with 5 slits (GU41D-A1). Fig. 25: Foot pole of Licmophora sp. showing internal and external details of multiscissura (11 slits) and rimoportula. Note absence of rimoportula on the valve in external view. (Palau specimen.) Fig. 26: Licmophora flabellata, internal view of apex showing an apical rimoportula at end of sternum (arrow), plus 2 additional rimoportulae along the sternum (Puerto Rico specimen). Scale bars: Fig. 22, 23 = 10 µm; Fig. 24 = 5 µm; Figs 21, 26 = 2 µm; Figs 20, 25 = 1 µm.