FIGURES 132–139 in The biogeographic distribution of Cavinula (Bacillariophyceae) in North America with the descriptions of two new species

FIGURES 132–139. SEM micrographs of Cavinula cocconeiformis (Gregory ex Greville) Mann & Stickle. Figs 132–135. Cavinula cocconeiformis (Morphotype 2). Figs 136–139. Cavinula cocconeiformis (Morphotype 1). Figs 132, 133, 136, 137. External valve view. Figs 134, 135, 138, 139. Internal valve view. Figs. 132, 133, 135. Clear Lake Oakley TWP: Sediment core from the deepest part of the lake, Muskoka District, Ontario, Canada; Fig. 137. Sediment core: 35 cm depth, Lac de Gras, Northwest Territories Canada. Figs 136–139. Baffin Island, Nunavut, east inlet Kingnait Fiord, stream moss. Scale bars: 2 µm in Figs 132, 133, 135, 137, 139; 5 µm in Figs 136, 138; 10 µm in Fig. 134.