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FIGURES 171–174 in Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal
FIGURES 171–174. SEM micrographs of the type material of Achnanthes minutissima var. inconspicua Østrup (Østrup collection, 753–2). 171. External view of a raphe valve, with central area as a rectangular fascia. 172. Internal view of a raphe valve. 173. External view of raphe valve with a single row of slit-like areolae, clearly visible on the mantle. 174. External view of a rapheless valve. Scale bars = 1 μm.
FIGURES 403–466 in Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal
FIGURES 403–466. LM micrographs of Achnanthidium lusitanicum Novais & M.Morais, sp. nov. 403–445. Janeiro de Baixo, Zêzere River (Tejo basin), 08–07–2006 (394/06), type locality; 443 is of the holotype. 446–466. Boeiro, Sertã Stream (Tejo basin), 09-07-2006 (324/06). Scale bar = 10 μm.
FIGURES 380–385 in Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal
FIGURES 380–385. SEM micrographs of Achnanthidium pseudolineare Van de Vijver, Novais & Ector from Portela do Homem, Homem River, Cávado basin, 26-09-2007 (34/07). 380. Raphe valve in external view. 381. Raphe valve in internal view. 382. Rapheless valve in external view. 383. Rapheless valve in internal view. 384. Detail of a raphe valve in external view, with the straight, not expanded, proximal pores and distal ending. The elongated, mostly slit-like areolae on the mantle are clearly visible. 385. Detail of a raphe valve in internal view, with the straight raphe ending, terminating in a small helictoglossa. Scale bars = 1 μm.
FIGURES 390–394 in Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal
FIGURES 390–394. SEM micrographs of Achnanthidium pseudolineare Van de Vijver, Novais & Ector from Covas, Coura River, Minho basin, 21–09–2007 (224/07). 390. Detail of the apex of a raphe valve in external view, with the straight distal raphe ending. 391. Detail of the central area of a raphe valve in external view, bordered by spaced shorter striae formed by transapically elongated areolae, and the straight, not expanded, proximal pores. 392. Detail of the apex of a raphe valve in internal view, with the raphe ending in a small helictoglossa. 393. Detail of the apex of a rapheless valve in internal view. 394. Complete frustule in girdle view, with the slit-like areolae on the mantle. Scale bars = 1 μm.
FIGURES 175–258 in Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal
FIGURES 175–258. LM micrographs of the type material and several populations of Achnanthidium nanum (F.Meister) Novais & Jüttner, comb. nov. from Portugal, Nepal, Scotland and Switzerland. 175–214. Côja, Alva River, Mondego basin, Portugal, 11-06-2007 (325/07). 215–238. Himalayan streams, Nepal, M62, K52, Helan 16 (NMW.C.2007.006.M62, NMW.C.2007.006.K52, NMW.C.2007.006.He16). 239–248. Foveran Burn, Mill of Newburgh, Scotland (NMW.C.2011.050.SEPA.1810037). 249–258. Achnanthes nana F.Meister (F. Meister collection, #2432), Riffelsee, Switzerland. Scale bar = 10 μm.
FIGURES 163–170 in Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal
FIGURES 163–170. SEM micrographs with details of the type material of Achnanthes minutissima var. cryptocephala Grunow in Van Heurck (Van Heurck Types du Synopsis 238). 163. Apice of a raphe valve in external view, showing rounded areolae at the extremity and slit-like areolae in the valve margin. 164. Apice of a raphe valve in internal view, with the transapically elongated areolae in the valve margin. 165. Apice of a rapheless valve in external view, with the slit-like areolae in the valve margin and in the mantle. 166. Apice of a rapheless valve in internal view, with the transpically elongated areolae in the valve margin. 167. Central area of a rapheless valve in external view, with elliptical shape and bordered by alternating shorter and longer striae. 168. Central area of a rapheless valve in internal view, with elliptical shape and bordered by shorter striae. 169. Central area of a raphe valve in external view, showing the rectangular fascia and the straight not expanded proximal pores. 170. Central area of a raphe valve in internal view, showing the rectangular fascia and the proximal raphe pores slightly deflected into opposite directions. Scale bars = 1 μm.
FIGURES 395–398 in Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal
FIGURES 395–398. SEM micrographs of Achnanthidium duriense Novais & Ector, sp. nov. from A-do-Bispo, Torto River, Douro basin, 18-08-2007 (129/07). 395. Raphe valve in external view. 396. Raphe valve in internal view. 397. Rapheless valve in external view. 398. Rapheless valve in internal view. Scale bars = 1 μm.
FIGURES 145–152 in Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal
FIGURES 145–152. SEM micrographs with details of the type material of Achnanthes minutissima Kütz. (isotype material, Kützing's Algarum Aquae Dulcis Germanicarum, Decade VIII, no. 75, Kützing 301). 145. Apice of a rapheless valve in girdle view, with the slit-like areolae in the mantle. 146. Apice of a rapheless valve in external view, with the rounded areolae in the apice and transapically elongated areolae in the valve margin. 147. Central area of a rapheless valve in external view. 148. Central area of a rapheless valve in internal view, with the areolae covered by hymenes. 149. Central area of a raphe valve in external view, showing the straight proximal raphe pores. 150. Central area of a raphe valve in a tilted internal view, with the proximal raphe pores slightly deflected in opposite directions. 151. Apice of a raphe valve in external view, with the distal ending slightly deflected. 152. Apice of a rapheless valve in internal view, with the areolae covered by hymenes. Scale bars = 1 μm.
FIGURES 70–86 in Type analysis of Cymbella schubartii and two new Encyonopsis species (Bacillariophyceae) from southeastern Brazil
FIGURES 70–86: Encyonopsis difficilis, São Paulo populations. Light and scanning electron micrographs. 70–80. LM views showing variation in size and valve outline. 81. SEM external view of entire valve showing the raphe and striae structure. 82. SEM internal view of entire valve. Note the shortened striae continuing around the apex. 83–84, 86. SEM internal detail of valve apex with helictoglossa. 85. SEM internal view of central area. Note the intermission. LM scale bar = 10 μm (in Figs 70–80).
FIGURE 87 in Type analysis of Cymbella schubartii and two new Encyonopsis species (Bacillariophyceae) from southeastern Brazil
FIGURE 87. Nonparametric multidimensional scaling plot of normalized coordinates for the morphological landmarks digitized on LM images of selected populations of Encyonospsis. Confidence ellipses (α = 0.95) shown.
FIGURES 36–54. Encyonopsis sanctipaulensis. 36–40 in Type analysis of Cymbella schubartii and two new Encyonopsis species (Bacillariophyceae) from southeastern Brazil
FIGURES 36–54. Encyonopsis sanctipaulensis. 36–40. LM views showing variation in size and valve outline of the Ribeirão do Campo Reservoir population. 41–54. Type material of Encyonopsis sanctipaulensis. All pictures taken from the holotype population (SP401589). Light and scanning electron micrographs. 41–50. LM views showing variation in size and valve outline. 51. SEM external view of areolae and central area. 52. SEM external view of entire valve showing the raphe and striae structure. 53. SEM internal view of central area. Note the intermissio. 54. SEM internal detail of valve apex with helictoglossa. LM scale bar = 10 μm (in Figs 36–50).
FIGURES 55–69 in Type analysis of Cymbella schubartii and two new Encyonopsis species (Bacillariophyceae) from southeastern Brazil
FIGURES 55–69. Type material of Encyonopsis linensis. Light and scanning electron micrographs. All pictures taken from the holotype population (SP355776). 55–65. LM views showing variation in size and valve outline. 66–67. SEM external view of entire valve showing the raphe and striae structure. 68. SEM external view of central area. Note the elongate foramina appearing as narrow slits and varied slits. 69. SEM internal view detail of areolae and central area with intermissio. LM scale bar = 10 μm (in Figs 55–65).
FIGURES 3–19 in Type analysis of Cymbella schubartii and two new Encyonopsis species (Bacillariophyceae) from southeastern Brazil
FIGURES 3–19. Type material of Encyonopsis schubartii. Light and scanning electron micrographs. All pictures taken from the holotype population (AM989). 3–12. LM views showing variation in size and valve outline. 13–15. SEM external views of entire valve showing the raphe and striae structure. 16. SEM external view of girdle bands. Note the line of small pores. 17–18. SEM internal detail of areolae and raphe. Note the areolae with struts providing structural support to the foramen. 17. SEM internal detail of valve apex with helictoglossa. 18. SEM internal detail of central area with intermissio. 19. SEM internal detail of the intermissio with small pores. LM scale bar = 10 μm (in Figs 3–12).
FIGURES 20–35 in Type analysis of Cymbella schubartii and two new Encyonopsis species (Bacillariophyceae) from southeastern Brazil
FIGURES 20–35. Encyonopsis schubartii, São Paulo populations. Light and scanning electron micrographs. 20–30. LM views showing variation in size and valve outline. 31–33. SEM external views of entire valve showing the raphe and striae structure. 34. SEM internal view of entire valve showing the raphe and striae structure. 35. SEM internal detail of areolae and central area with intermissio. Note the intermissio with small pores. LM scale bar = 10 μm (in Figs 20–30).
FIGURE 2 in Type analysis of Cymbella schubartii and two new Encyonopsis species (Bacillariophyceae) from southeastern Brazil
FIGURE 2. Position of the 20 landmarks (1–10, 15–24) and 4 semi-landmarks (11–14) on the valve outline used to perform the geometric morphometric analysis. Scale bar = 10 μm.
FIGURE 1 in Type analysis of Cymbella schubartii and two new Encyonopsis species (Bacillariophyceae) from southeastern Brazil
FIGURE 1. Sampling sites located in São Paulo State (Parana River basin) with the location of Encyonopsis schubartii type material and the species complex.
FIGURES 2–17. Microcostatus aerophilus. 2–6 in Study of the type material of Navicula egregia Hustedt and descriptions of two new aerial Microcostatus (Bacillariophyta) species from Central Europe
FIGURES 2–17. Microcostatus aerophilus. 2–6. LM photographs from Hustedt German material. 7–12. Holotype population from Husów material. 13–15. SEM photographs in external valve view illustrating variation in size, outline and conopea with perforation. 16. External girdle view from Husów. 17. External valve view with clearly visible asymmetrical constricted sternum from Hustedt German material.
FIGURES 18–28. Microcostatus edaphicus. 18–23 in Study of the type material of Navicula egregia Hustedt and descriptions of two new aerial Microcostatus (Bacillariophyta) species from Central Europe
FIGURES 18–28. Microcostatus edaphicus. 18–23. LM photographs of type material from Hustedt Collection. 24–25, 27. SEM photographs of external valve view with characteristic clearly visible elongated pores as continuation of striae. 26, 28. Internal valve view with helictoglossae.
FIGURES 29–56. Microcostatus egregius. 29 in Study of the type material of Navicula egregia Hustedt and descriptions of two new aerial Microcostatus (Bacillariophyta) species from Central Europe
FIGURES 29–56. Microcostatus egregius. 29. Drawing of Navicula egregia Hustedt 1942a. 30–52. LM photographs of Hustedt type material. 53, 55–56. SEM photographs of external valve view illustrating a row of perforation in the place of sternum and conopeum connection. 54. Internal valve view with helictoglossae.
FIGURES 13–18. Eunotia rudis from type material CCA 3282, SEM external views. 13–14 in Eunotia rudis sp. nov., a new diatom (Bacillariophyta) from the Man and Biosphere Reserve at Yangambi, Democratic Republic of the Congo
FIGURES 13–18. Eunotia rudis from type material CCA 3282, SEM external views. 13–14. Overview of an entire valve. 15–16. Detail of both poles of the same valve showing the enlarged terminal raphe endings. 17. Overview of an entire frustule in girdle view. 18. Detail of the girdle bands near the undulation on the dorsal side. Scale bar: 10 μm (Figs 13–14, 17), 5 μm (Figs 15–16, 18).
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.