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129 results for “Diploneis”
FIGURES 17–23. Diploneis zannii, SEM. 17–19 in Revision of the type material of Diploneis zannii Frenguelli (Bacillariophyceae)
FIGURES 17–23. Diploneis zannii, SEM. 17–19: External valve view. 17. Whole valve.18. Detail showing central area and proximal raphe ends. 19. Detail showing valve end and distal end of raphe. 20–23. Internal valve view 20. Whole valve. 21. Detail showing valve end; note distal end of raphe, helictoglossa and round areolae of the striae (arrowheads). 22. Detail showing central area. 23. Detail of broken valve, note the fungiform section of transapical ribs (arrows) and the rounded areolae (arrowheads). Scale bars: Figs 17, 20: 10 μm; Figs 18–19, 21–23: 2 μm.
FIGURES 1–16 in Revision of the type material of Diploneis zannii Frenguelli (Bacillariophyceae)
FIGURES 1–16. Diploneis zannii, LM. Specimens from type population. Valve views showing specimen variation. Figs 1–13 = Isolectotypes (same specimens in different focus). Figs 14–16 = Lectotype (same specimen in different focus). Scale bar: 10 μm.
FIGURES 109–122. Figs. 109, 111. Diploneis vacillans. Fig.110. D. littoralis var. clathrata. Figs. 109, 111 in Diatoms (Bacillariophyta) From Artificial Substrates And Sediments In The Caribbean Sea Off Yucatan, Mexico
FIGURES 109–122. Figs. 109, 111. Diploneis vacillans. Fig.110. D. littoralis var. clathrata. Figs. 109, 111. LM raphe valve. Fig. 110. SEM internal view. Fig. 112. Fallacia floriniae. Figs. 113–115. F. forcipata. Fig. 113. SEM valve view. Fig. 114. LM valve view. Fig. 115. SEM internal view. Figs. 116–119. Trachyneis aspera. Fig. 120. Dictyoneis marginata f. elongata. Fig. 121. Oestrupia zanardiniana. Fig. 122. Biremis ambigua. Scale bar: figs. 112, 113, 115 = 1 μm, figs. 109–111, 114, 116–122 = 10 μm.
FIGURES 163–176. Figs. 163–165. Diploneis splendida. Fig. 163. SEM valve view. Figs. 164–165 in Diatoms (Bacillariophyta) From Artificial Substrates And Sediments In The Caribbean Sea Off Yucatan, Mexico
FIGURES 163–176. Figs. 163–165. Diploneis splendida. Fig. 163. SEM valve view. Figs. 164–165. LM valve view. Fig. 166. D. crabro. Fig. 167. D. crabro var. dirhombus. Figs. 168–173. D. bomboides. Figs. 168–170, 173. LM valve view. Fig. 171. SEM valve view. Fig. 172. SEM frustule view. Fig. 174. D. chersonensis. Fig. 175. D. bomboides. Fig. 176. D. suborbicularis. Scale bar: figs. 163 = 1 μm, figs. 164–176= 10 μm.
FIGURES 150–162. Figs. 150–151. Diploneis smithii, 154–156. Diploneis vacillans. Fig. 150. SEM valve view. Figs. 151, 154–156 in Diatoms (Bacillariophyta) From Artificial Substrates And Sediments In The Caribbean Sea Off Yucatan, Mexico
FIGURES 150–162. Figs. 150–151. Diploneis smithii, 154–156. Diploneis vacillans. Fig. 150. SEM valve view. Figs. 151, 154–156. LM valve view. Figs. 152–153. D. litoralis var. clathrata. Fig. 152. SEM internal valve view. Fig. 153. LM valve view. Fig. 157. D. papula. Fig. 158. D. obliqua. Fig. 159. Cocconeiopsis patrickae. Fig. 160. Achnanthes citronella, SEM internal valve view. Fig. 161. Diploneis cf. domblittensis, SEM internal valve view. Fig. 162. Mastogloia pusilla var. subcapitata. Scale bar: figs. 150, 152, 157, 159, 162 = 1 μm, figs. 151, 153–155, 158, 160–161 = 10 μm.
FIGURE 1 in A new aerophilic species of the genus Diploneis (Bacillariophyta) from the Mawsmai cave of Meghalaya, Northeast India
FIGURE 1: 1-A. The map showing the type locality of Diploneis mawsmaii with inset highlighting the study region in India. 1-B Photograph of the rooftop opening near the exit of the Mawsmai cave where the epibryophytic sample was collected (an arrowhead indicates the place of the sample collection at the type location).
FIGURES 23–28 in Identity and typification of Diploneis ostracodarum, Diploneis budayana and Diploneis praeclara (Bacillariophyta)
FIGURES 23–28: Diploneis ostracodarum, SEM micrographs. Fig. 23. External view of the whole valve. Fig. 24. Distal raphe ending with terminal fissures. Fig. 25. Internal view of an entire valve. Fig. 26. External view of corroded valve. Fig. 27. External view of the central area with proximal raphe endings. Fig. 28. Internal view of the central area with proximal raphe endings, showing the structure of the alveoli. Scale bars = 10 µm (Figs 23, 25, 26); 5 µm (Figs 24, 27, 28).
FIGURES 37–43 in Identity and typification of Diploneis ostracodarum, Diploneis budayana and Diploneis praeclara (Bacillariophyta)
FIGURES 37–43: Diploneis praeclara, SEM micrographs. Fig. 37. External view of corroded valve. Fig. 38. External view of the central area with proximal raphe ending. Fig. 39. Broken valve showing the external and internal valve structure. Fig. 40. Internal view of the whole valve. Fig. 41. Internal view of the valve showing the proximal and distal raphe ends. Fig. 42. Distal raphe ending with terminal fissures. Fig. 43. External valve view. Scale bars = 10 µm (Fig. 43); 5 µm (Figs 37–42).
FIGURES 7–11 in Identity and typification of Diploneis ostracodarum, Diploneis budayana and Diploneis praeclara (Bacillariophyta)
FIGURES 7–11: Diploneis budyana, SEM micrographs. Fig. 7. External view of whole valve. Fig. 8. Internal view of an entire valve, note the pseudoseptum at the valve apices. Fig. 9. External view of corroded valve, showing the structure of the alveoli and the central area with proximal raphe endings. Fig. 10. Showing the structure of the areolar transapical opening covered with projected occlusions. Fig. 11. Distal raphe endings with question mark-shaped terminal fissure. Scale bars = 10 µm (Figs 7–9); 5 µm (Figs 10, 11).
FIGURES 29–36 in Identity and typification of Diploneis ostracodarum, Diploneis budayana and Diploneis praeclara (Bacillariophyta)
FIGURES 29–36: Diploneis praeclara, LM micrographs. Fig. 29. Pantocsek's original drawing modification from Pantocsek 1892, fig. 11: 182. Fig. 30. Lectotype, BP 2242. Figs 31–36. Valve view. Scale bar = 10 µm.
FIGURES 1–6 in Identity and typification of Diploneis ostracodarum, Diploneis budayana and Diploneis praeclara (Bacillariophyta)
FIGURES 1–6: Diploneis budyana, LM micrographs. Fig. 1. Pantocsek's original drawing modification from Pantocsek 1892, fig. 4: 57. Fig. 2. Lectotype, BP 2240. Figs 3–6. Valve view. Scale bar = 10 µm.
FIGURES 12–22 in Identity and typification of Diploneis ostracodarum, Diploneis budayana and Diploneis praeclara (Bacillariophyta)
FIGURES 12–22: Diploneis ostracodarum, LM micrographs. Fig. 12. Pantocsek's original drawing modification from Pantocsek 1892, fig. 9: 145. Fig. 14. Lectotype, BP 2241. Figs 13, 15–22. Valve view. Scale bar = 10 µm.
FIGURES 1–18 in Diploneis fenestrata sp. nov. (Bacillariophyta), a new aerophilic diatom species from Zambia, Africa
FIGURES 1–18. Diploneis fenestrata: LM of valves from specimen on holotype (BR 4331; Fig. 13 = holotype specimen) (Lumangwe Falls on the Kalungwishi River in Zambia); specimens at different focal depths, showing size range in valve view. Scale bar = 10 µm.
FIGURES 45–48 in Diploneis fenestrata sp. nov. (Bacillariophyta), a new aerophilic diatom species from Zambia, Africa
FIGURES 45–48. Diploneis fenestrata SEM: type material (sample D-NWU 12-388). Fig. 45.View of whole valve. Fig. 46. View of central area with proximal raphe ends. Fig. 47. Illustration of transapical costae and serrated advalvar edge. Fig. 48. Illustrating distal raphe ends. Scale bars = 10 µm (Fig. 45), 2 µm (Figs 46–48).
FIGURES 41–44 in Diploneis fenestrata sp. nov. (Bacillariophyta), a new aerophilic diatom species from Zambia, Africa
FIGURES 41–44. Diploneis fenestrata SEM: type material (sample D-NWU 12-388). Figs 41–43. External valve view showing square openings present only above longitudinal canal and periphery of opening demarcated by areolae-like structures. Fig. 44. Internal view of whole valve. Scale bars = 1 µm (Figs 41–43), 10 µm (Fig. 44).
FIGURES 35–40 in Diploneis fenestrata sp. nov. (Bacillariophyta), a new aerophilic diatom species from Zambia, Africa
FIGURES 35–40, Diploneis fenestrata SEM: type material (sample D-NWU 12-388), external valve view. Fig. 35. Cingulum and valvocopula. Fig. 36. Illustrating small round shaped openings occurring between papillae-like structures in areolae. Fig. 37. Illustrating curved distal raphe ends. Fig. 38. Illustrating straight central raphe ends sunk in a round depression. Fig. 39. Illustrating cribrate areolae above longitudinal canal. Fig. 40. Illustrating silica depositions in between alveolate striae. Scale bar = 1µm.
FIGURES 31–34 in Diploneis fenestrata sp. nov. (Bacillariophyta), a new aerophilic diatom species from Zambia, Africa
FIGURES 31–34. Diploneis fenestrata SEM: type material (sample D-NWU 12-388). External view of whole valves, showing flat valve surface and square opening on valve surface. Scale bar = 10 µm.
FIGURES 19–30 in Diploneis fenestrata sp. nov. (Bacillariophyta), a new aerophilic diatom species from Zambia, Africa
FIGURES 19–30. Diploneis fenestrata: LM of valves from holotype (BR 4331) (Lumangwe Falls on the Kalungwishi River in Zambia); specimens at different focal depths, showing size range in valve view. Scale bar = 10 µm.
FIGURES 457–461 in Morphological and molecular characterization of twenty-five new Diploneis species (Bacillariophyta) from Lake Tanganyika and its surrounding areas
FIGURES 457–461. Diploneis elongata sp. nov., SEM external valve views, Lake Tanganyika. 457, 458. Specimen from Kiganza Bay. 459, 460. Specimen from Jakobsen Beach. 461. Specimen from Kalambo Falls Lodge. 457, 460. View of a whole valve. 458. Central area showing the teardrop shaped depression with proximal raphe ends; note inter-areolar semi-circular shaped fin ornamentations of the canal and biseriate striae (white arrow). 459. Close view of the areolae structure in a broken specimen. 461. Distal raphe ends with deflected terminal fissures. Scale bars = 10 μm (Figs 457, 460), 5 μm (Fig. 458), 2 μm (Figs 459, 461).
FIGURES 434–438 in Morphological and molecular characterization of twenty-five new Diploneis species (Bacillariophyta) from Lake Tanganyika and its surrounding areas
FIGURES 434–438. Diploneis cocquytiana sp. nov., SEM external valve views, Lake Tanganyika, Isanga Bay. 434, 437. View of a whole valve. 435. Mid-valve, showing linear extended teardrop shaped depressions with proximal raphe ends and serrated inter-areolar fin-like shaped ornamentations. 436. Half-valve, showing the raphe branch system. 438. Distal raphe end with deflected terminal fissure; white arrowed uniseriate becoming biseriate striae pattern. Scale bars = 10 μm (Figs 434, 437), 5 μm (Figs 435, 436, 438).
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