taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
0399343DFF82FFD176ACBFA8FE0DF86A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431246/files/figure.png	https://doi.org/10.5281/zenodo.7431246	FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF8CFFD076ACBD83FAC4F832.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431252/files/figure.png	https://doi.org/10.5281/zenodo.7431252	FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF8CFFD076ACBD83FAC4F832.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431246/files/figure.png	https://doi.org/10.5281/zenodo.7431246	FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF8EFFD476ACBA5FFE73F7D7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431254/files/figure.png	https://doi.org/10.5281/zenodo.7431254	FIGURES 45–71. LM and SEM images of Achnanthidium lusitanicum from Garças Lake, São Paulo state (SP-469485). 45–56.LM views of raphe valves. 57–65. LM views of rapheless valves. 66, 67. SEM external view of raphe valves showing striation pattern, axial and central areas. 68. SEM internal view of the raphe valve. 69, 70. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 71. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 45–71. LM and SEM images of Achnanthidium lusitanicum from Garças Lake, São Paulo state (SP-469485). 45–56.LM views of raphe valves. 57–65. LM views of rapheless valves. 66, 67. SEM external view of raphe valves showing striation pattern, axial and central areas. 68. SEM internal view of the raphe valve. 69, 70. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 71. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF8EFFD476ACBA5FFE73F7D7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431258/files/figure.png	https://doi.org/10.5281/zenodo.7431258	FIGURES 72–99. LM and SEM images of Achnanthidium lusitanicum from Guarapiranga reservoir, São Paulo state (SP-428513). 72–83. LM views of raphe valves. 84–95. LM views of rapheless valves. 96, 97. SEM external view of raphe valves showing striation pattern, axial and central areas. 98. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 99. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 72–99. LM and SEM images of Achnanthidium lusitanicum from Guarapiranga reservoir, São Paulo state (SP-428513). 72–83. LM views of raphe valves. 84–95. LM views of rapheless valves. 96, 97. SEM external view of raphe valves showing striation pattern, axial and central areas. 98. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 99. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF8BFFD676ACBD83FEF9F836.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431260/files/figure.png	https://doi.org/10.5281/zenodo.7431260	FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF8BFFD676ACBD83FEF9F836.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431246/files/figure.png	https://doi.org/10.5281/zenodo.7431246	FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF8BFFD676ACBD83FEF9F836.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431254/files/figure.png	https://doi.org/10.5281/zenodo.7431254	FIGURES 45–71. LM and SEM images of Achnanthidium lusitanicum from Garças Lake, São Paulo state (SP-469485). 45–56.LM views of raphe valves. 57–65. LM views of rapheless valves. 66, 67. SEM external view of raphe valves showing striation pattern, axial and central areas. 68. SEM internal view of the raphe valve. 69, 70. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 71. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 45–71. LM and SEM images of Achnanthidium lusitanicum from Garças Lake, São Paulo state (SP-469485). 45–56.LM views of raphe valves. 57–65. LM views of rapheless valves. 66, 67. SEM external view of raphe valves showing striation pattern, axial and central areas. 68. SEM internal view of the raphe valve. 69, 70. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 71. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF95FFC876ACBA54FA3BFB0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431262/files/figure.png	https://doi.org/10.5281/zenodo.7431262	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.	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.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF94FFCA76ACB83EFC51FEF6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431264/files/figure.png	https://doi.org/10.5281/zenodo.7431264	FIGURES 144–165. LM and SEM images of Achnanthidium peetersianum from Rifaína city, São Paulo state (SP371175). 144–154. LM views of raphe valves. 155–157. LM views of rapheless valves. 158, 159. Girdle views of the taxon. 160–162. SEM external view of raphe valves showing striation pattern, axial and central areas and the terminal raphe fissures deflected. 163. SEM internal view of the raphe valve. 164, 165. 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.	FIGURES 144–165. LM and SEM images of Achnanthidium peetersianum from Rifaína city, São Paulo state (SP371175). 144–154. LM views of raphe valves. 155–157. LM views of rapheless valves. 158, 159. Girdle views of the taxon. 160–162. SEM external view of raphe valves showing striation pattern, axial and central areas and the terminal raphe fissures deflected. 163. SEM internal view of the raphe valve. 164, 165. 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.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF91FFCD76ACBD83FAAEFCE0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431268/files/figure.png	https://doi.org/10.5281/zenodo.7431268	FIGURES 166–193. LM and SEM images of Achnanthidium peruvianum from from Salto do Iporanga reservoir, São Paulo state (SP- 469207). 166–176. LM views of raphe valves. 177–186. LM views of rapheless valves. 187–189. Girdle views of the taxon. 190–192. SEM external view of raphe valves showing striation pattern, axial and central areas. 193. SEM external view of the rapheless valve showing striation pattern, axial and central areas. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 166–193. LM and SEM images of Achnanthidium peruvianum from from Salto do Iporanga reservoir, São Paulo state (SP- 469207). 166–176. LM views of raphe valves. 177–186. LM views of rapheless valves. 187–189. Girdle views of the taxon. 190–192. SEM external view of raphe valves showing striation pattern, axial and central areas. 193. SEM external view of the rapheless valve showing striation pattern, axial and central areas. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF91FFCD76ACBD83FAAEFCE0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431246/files/figure.png	https://doi.org/10.5281/zenodo.7431246	FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF91FFCC76ACBE21FEDDFE24.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431272/files/figure.png	https://doi.org/10.5281/zenodo.7431272	FIGURES 194–214. LM and SEM images of Achnanthidium ritae sp. nov.from the type (SP-427904) from Billings complex,Taquacetuba branch, São Paulo state. Figure 205 corresponds to the holotype. 194–201. LM views of raphe valves. 202–210. LM views of rapheless valves. 211. SEM external view of raphe valve showing striation pattern, axial and central areas. 212. SEM internal view of the raphe valve. 213. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 214. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 194–214. LM and SEM images of Achnanthidium ritae sp. nov.from the type (SP-427904) from Billings complex,Taquacetuba branch, São Paulo state. Figure 205 corresponds to the holotype. 194–201. LM views of raphe valves. 202–210. LM views of rapheless valves. 211. SEM external view of raphe valve showing striation pattern, axial and central areas. 212. SEM internal view of the raphe valve. 213. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 214. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF91FFCC76ACBE21FEDDFE24.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431258/files/figure.png	https://doi.org/10.5281/zenodo.7431258	FIGURES 72–99. LM and SEM images of Achnanthidium lusitanicum from Guarapiranga reservoir, São Paulo state (SP-428513). 72–83. LM views of raphe valves. 84–95. LM views of rapheless valves. 96, 97. SEM external view of raphe valves showing striation pattern, axial and central areas. 98. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 99. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 72–99. LM and SEM images of Achnanthidium lusitanicum from Guarapiranga reservoir, São Paulo state (SP-428513). 72–83. LM views of raphe valves. 84–95. LM views of rapheless valves. 96, 97. SEM external view of raphe valves showing striation pattern, axial and central areas. 98. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 99. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF91FFCC76ACBE21FEDDFE24.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431260/files/figure.png	https://doi.org/10.5281/zenodo.7431260	FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF90FFCE76ACBA19FD69FCEF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431274/files/figure.png	https://doi.org/10.5281/zenodo.7431274	FIGURES 215–237. LM and SEM images of Achnanthidium saprophilum from Rio Grande reservoir, São Paulo state (SP427898). 215–222. LM views of raphe valves. 223–231. LM views of rapheless valves. 232–234. SEM external view of raphe valves showing striation pattern, axial and central areas. 235. SEM internal view of the raphe valve. 236. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 237. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 215–237. LM and SEM images of Achnanthidium saprophilum from Rio Grande reservoir, São Paulo state (SP427898). 215–222. LM views of raphe valves. 223–231. LM views of rapheless valves. 232–234. SEM external view of raphe valves showing striation pattern, axial and central areas. 235. SEM internal view of the raphe valve. 236. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 237. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF92FFCE76ACBE5BFAFEF9A3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431276/files/figure.png	https://doi.org/10.5281/zenodo.7431276	FIGURES 238–259. LM and SEM images of Achnanthidium tropicocatenatum from Cachoeira do França reservoir, São Paulo state (type locality, SP-469430). 238–243. LM views of raphe valves. 244–251. LM views of rapheless valves. 252, 253. Girdle views of the taxon. 254. SEM external view of raphe valve showing striation pattern, axial and central areas. 255. SEM internal view of the raphe valve. 256. SEM internal detail of the proximal raphe end. 257, 258. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 259. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 238–259. LM and SEM images of Achnanthidium tropicocatenatum from Cachoeira do França reservoir, São Paulo state (type locality, SP-469430). 238–243. LM views of raphe valves. 244–251. LM views of rapheless valves. 252, 253. Girdle views of the taxon. 254. SEM external view of raphe valve showing striation pattern, axial and central areas. 255. SEM internal view of the raphe valve. 256. SEM internal detail of the proximal raphe end. 257, 258. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 259. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF92FFCE76ACBE5BFAFEF9A3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431278/files/figure.png	https://doi.org/10.5281/zenodo.7431278	FIGURES 260–275. LM and SEM images of Achnanthidium tropicocatenatum from Santa Helena reservoir, São Paulo state (SP-469524). 260–267. LM views of raphe valves. 268–273. LM views of rapheless valves. 274. SEM external view of raphe valve showing striation pattern, axial and central areas. 275. SEM external view of the rapheless valve showing striation pattern, axial and central areas. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 260–275. LM and SEM images of Achnanthidium tropicocatenatum from Santa Helena reservoir, São Paulo state (SP-469524). 260–267. LM views of raphe valves. 268–273. LM views of rapheless valves. 274. SEM external view of raphe valve showing striation pattern, axial and central areas. 275. SEM external view of the rapheless valve showing striation pattern, axial and central areas. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF92FFC076ACBB9FFB24F866.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431280/files/figure.png	https://doi.org/10.5281/zenodo.7431280	FIGURES 276–310. LM and SEM images of Achnanthidium vandevijveri sp. nov. from the type (SP-469485) from Garças Lake, São Paulo state. Figure 282 corresponds to the holotype. 276–291. LM views of raphe valves. 292–306. LM views of rapheless valves. 307, 308. SEM external view of raphe and rapheless valve showing striation pattern, axial and central areas. 309. SEM internal view of the raphe valve. 310. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	FIGURES 276–310. LM and SEM images of Achnanthidium vandevijveri sp. nov. from the type (SP-469485) from Garças Lake, São Paulo state. Figure 282 corresponds to the holotype. 276–291. LM views of raphe valves. 292–306. LM views of rapheless valves. 307, 308. SEM external view of raphe and rapheless valve showing striation pattern, axial and central areas. 309. SEM internal view of the raphe valve. 310. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
0399343DFF92FFC076ACBB9FFB24F866.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7431284/files/figure.png	https://doi.org/10.5281/zenodo.7431284	FIGURES 311–316. SEM images of Achnanthidium vandevijveri sp. nov. from the type (SP-469485) from Garças Lake, São Paulo state. 311–313. SEM external view of raphe valves showing the range of areolae number per stria. 314–316. SEM external view of the rapheless valves. SEM scale bars indicated in each figure.	FIGURES 311–316. SEM images of Achnanthidium vandevijveri sp. nov. from the type (SP-469485) from Garças Lake, São Paulo state. 311–313. SEM external view of raphe valves showing the range of areolae number per stria. 314–316. SEM external view of the rapheless valves. SEM scale bars indicated in each figure.	2022-12-13	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.		Zenodo	biologists	Costa, Lívia F.;Wetzel, Carlos E.;Maquardt, Gisele C.;Zanon, Jaques E.;Ector, Luc;Bicudo, Denise C.			
