FIGURES 117–143 in Taxonomy and ecology of Achnanthidium (Bacillariophyta, Achnanthidiaceae) from southeastern Brazil with the description of six new species

FIGURES 117–143. LM and SEM images of Achnanthidium paulistanum sp. nov. from the type (SP-255724) from a small lake, São Pedro city, São Paulo state. Figure 118 corresponds to the holotype. 117–126. LM views of raphe valves. 127–134. LM views of rapheless valves. 135–137. Girdle views of the new taxon. 138–140. SEM external view of raphe valves showing striation pattern, axial and central areas, the terminal raphe fissures deflected and the row of slit-like areolae on mantle. 141. SEM internal view of the raphe and rapheless valves. 142, 143. SEM external view of the rapheless valves showing striation pattern, axial and central areas. LM scale bar = 10 μm. SEM scale bars indicated in each figure.