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17 results for “sub-Antarctic region”
Fig. 4 in Africanacetus from the sub-Antarctic region: The southernmost record of fossil beaked whales
Fig. 4. The beaked whale Africanacetus sp., skull (YugNIRO 409) in posterior view. A. Photograph. B. Explanatory drawing.
Fig. 6 in Africanacetus from the sub-Antarctic region: The southernmost record of fossil beaked whales
Fig. 6. Geographical range of the beaked whale Africanacetus. 1, type area; 2, Banzare Bank (from where the present material was recovered).
Fig. 2 in Africanacetus from the sub-Antarctic region: The southernmost record of fossil beaked whales
Fig. 2. The beaked whale Africanacetus sp., skull (YugNIRO 409) in ventral view. A. Photograph. B. Explanatory drawing.
Fig. 1 in Africanacetus from the sub-Antarctic region: The southernmost record of fossil beaked whales
Fig. 1. The beaked whale Africanacetus sp., skull in dorsal view. A. YugNIRO 409, photograph (A1) and explanatory drawing (A2). B. YugNIRO 408.
Fig. 5 in Africanacetus from the sub-Antarctic region: The southernmost record of fossil beaked whales
Fig. 5. The beaked whale Africanacetus sp. (YugNIRO 408), narial region of the skull in ventral view.
Linked collectors and determiners for: Records of Parochlus steinenii in the Maritime Antarctic and sub-Antarctic regions.
Natural history specimen data linked to collectors and determiners held within, "Records of Parochlus steinenii in the Maritime Antarctic and sub-Antarctic regions". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/30c49fbf-4e2e-482e-bb49-4d294bc332cb">https://bionomia.net/dataset/30c49fbf-4e2e-482e-bb49-4d294bc332cb</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/30c49fbf-4e2e-482e-bb49-4d294bc332cb">https://gbif.org/dataset/30c49fbf-4e2e-482e-bb49-4d294bc332cb</a>. Formatted as a Frictionless Data package.
FIGURES 1–31 in Diatomella colonialis, a new diatom species (Bacillariophyta) from the sub-Antarctic Region
FIGURES 1–31. Diatomella colonialis sp. nov. Light microscopy views. Holotype population from Iles Kerguelen (sample Port Bizet). 1–3. Initial valves. 4–25. Valve views showing the broad range of valve dimensions. 26–29. Observations on scalariform valvocopulae. 30-31. Two colonies with frustules connected by linking spines. Scale bar represents 10 μm.
FIGURES 32–38 in Diatomella colonialis, a new diatom species (Bacillariophyta) from the sub-Antarctic Region
FIGURES 32–38. Diatomella colonialis sp. nov. SEM views taken from the holotype population from Iles Kerguelen (sample Port Bizet). 32. SEM of a long chain with several frustules connected by their linking spines. 33. SEM of an entire frustule in girdle view showing the structure and composition of the girdle (VC = valvocopula, C1–C3 = copula 1 to 3). The arrows indicate plaques and the granular surface structure. 34. SEM external valve face view. Note the presence of marginal linking spines and the reduced raphe structure. 35. SEM external valve face view of an entire valve lacking marginal spines. 36. SEM internal valve face view of an entire valve showing the large silica plate covering almost the entire valve interior. 37. SEM internal detail of half a valve showing the reduced internal raphe branch and the alveolate structure of the striae. 38. SEM view of a scalariform valvocopula. Scale bar represents 10 μm.
FIGURES 26–48 in Two new centric diatoms (Bacillariophyta) from the sub-Antarctic region
FIGURES 26–48. Arcanodiscus desmetianus Van de Vijver sp. nov. Light (LM) and Scanning electron (SEM) micrographs of the holotype population (sample BA200) from Pointe Basse, Ile de la Possession (Iles Crozet), Subantarctica. Figs 26–33 LM photographs of several frustules in girdle view. Figs 34–48. LM photographs in valve face view showing the large hyaline central area. Figs 42 & 43. SEM view of two frustules in girdle view showing the the girdle bands, several portulae and the parallel ridges on the mantle. Fig. 44. SEM view of a valve in girdle view showing the areolae and the parallel ridges on the mantle. Fig. 45. SEM view of a valve face showing different portulae (arrows) and irregular thickenings on the valve face/mantle junction. Fig. 46. SEM valve face view showing clearly the hyaline central area and the gently sloping valve face/mantle junction. Fig. 48. Internal SEM view of entire valve. Fig. 49. Internal SEM view of the areolae with rota and the openings of the portulae. Scale bars represent 10 μm except for Fig. 48 where scale bar = 1 μm.
FIGURES 1–25 in Two new centric diatoms (Bacillariophyta) from the sub-Antarctic region
FIGURES 1–25. Ferocia subantarctica sp. nov. Light (LM) and Scanning electron (SEM) micrographs of the holotype population (sample HE199) from Round Hill, Heard Island, Subantarctica. Figs 1–10 LM photographs of several valves in girdle view connected to each other via spines. In some pictures, the girdle bands can be seen. Figs 11–18. LM photographs in valve face view. Fig. 19. SEM view of several valves in girdle view showing the domed valve face, the mantle with the Müller step and the numerous girdle bands. Fig. 20. SEM view of the girdle bands. Fig. 21. Mantle SEM view of two valves connected via linking spines. The arrows indicate the Müller step. Fig. 22. SEM view of a valve face showing the irregular placement of the spines. Note the lack of a large hyaline zone in the central area. Fig. 23. SEM mantle view of a valve with the slightly domed valve face, the irregular placement of the spines and the hyaline central area. Fig. 24. SEM view of the valve mantle showing the mantle areolae and some broken, not entirely hollow spines. Fig. 25. Internal SEM view of entire valve. The arrows indicate the rimoportulae. Note the areolar canal in the broken part of the valve. Scale bars represent 10 μm except for Fig. 22 where scale bar = 5 μm.
FIGURES 1–22 in Cyclotella deceusteriana, a new centric diatom species (Bacillariophyta) from the sub-Antarctic Region
FIGURES 1–22. Cyclotella deceusteriana Van de Vijver & Dessein sp. nov. Figures 1–14 taken from the Iles Kerguelen type population (sample BW424), figs 15–22 taken from the Ile de la Possession (Crozet Archipelago) population (sample BW513). Figs 1–22. LM photographs of valves in diminishing size range. Note the different number of central fultoportulae related to a decreasing valve diameter. The arrows indicate the marginal fultoportulae. Scale bar represents 10 μm.
FIGURES 23–29 in Cyclotella deceusteriana, a new centric diatom species (Bacillariophyta) from the sub-Antarctic Region
FIGURES 23–29. Cyclotella deceusteriana Van de Vijver & Dessein sp. nov. All SEM pictures taken from the Iles Kerguelen type population (sample BW424). Fig. 23. External scanning electron microscopy image of an entire valve showing the smooth, flat central area, the central fultoportulae, the undulating marginal structure, the marginal spines and the marginal fultoportulae. The arrows indicate the marginal depressions, split in several small, rounded pores. Figs 24–26. External views of several valves showing a variable number of central fultoportulae, the variability within the marginal spines and the clearly smooth central area. Fig. 27. Internal SEM image of an entire valve showing the smooth, flat central area, the marginal fultoportulae located on each costa, the rimoportula and the central marginal fultoportulae. The arrows indicate unbroken spines. Fig. 28. SEM external detail of the marginal part of a valve showing clearly the spines, the openings of the marginal fultoportulae (double-headed arrows) and the hyaline furrows between the raised striae (arrows). Fig. 29. Internal SEM detail of the rimoportulae and several costae bearing marginal fultoportulae. Note also the very finely areolated striae between the costae. Scale bar represents, 5 μm for figs 24–26 and 1 μm for figs 23, 27–29.
FIGURES 23–27 in Ferocia gen. nov., a new centric diatom genus (Bacillariophyceae) from the sub-Antarctic region
FIGURES 23–27. Ferocia setosa (Greville) Van de Vijver & Houk comb. nov. SEM. Ile Amsterdam population (sample AMS-W033). Fig. 23. Two valves connected by linking spines with the cingulum composed of numerous narrow, ligulate open copulae. Fig. 24. Two valves connected by linking spines. Note the large spines, the numerous granules and the areolae on the mantle. Müller step clearly visible. Fig. 25. View of an entire valve showing spines, valve face areolae and mantle. Fig. 26. Internal view of an entire valve showing the ring of rimoportulae (arrows). Fig. 27. Internal detail of the rimoportulae. Scale bar represents 10 μm except for fig. 27 where scale bar = 1 μm.
FIGURES 6–22 in Ferocia gen. nov., a new centric diatom genus (Bacillariophyceae) from the sub-Antarctic region
FIGURES 6–22. Ferocia setosa (Greville) Van de Vijver & Houk comb. nov. LM. Ile Amsterdam population (sample AMS-W033). Figs 6–7. Chains of up to 4 frustules linked by linking spines. Fig. 1 shows numerous chloroplasts. Figs 8–14. Valves linked via linking spines. Note the internal cells in Figs 8, 13 & 19 and the numerous copulae in Fig. 11 (see arrows). Fig. 15. Valve view showing the cell contours. Figs 16–22. Several valves in valve view showing linking spines. Scale bar represents 10 μm.
FIGURES 1–5 in Ferocia gen. nov., a new centric diatom genus (Bacillariophyceae) from the sub-Antarctic region
FIGURES 1–5. Melosira setosa Greville. LM. Type population (Aneitum, New Hebrides, lectotype slide BM 3532, Natural History Museum, London, UK). Scale bar represents 5 μm.
Figure 2 from: Gañan M, Contador T, Rendoll J, Simoes F, Pérez C, Graham G, Castillo S, Kennedy J, Convey P (2021) Records of Parochlus steinenii in the Maritime Antarctic and sub-Antarctic regions. ZooKeys 1011: 63-71. https://doi.org/10.3897/zookeys.1011.56833
Figure 2 Parochlus steinenii (Fildes Bay, South Shetland Islands). a Female (up) and male (down) adult b larva c pupa d group of adults on a stone.
Figure 1 from: Gañan M, Contador T, Rendoll J, Simoes F, Pérez C, Graham G, Castillo S, Kennedy J, Convey P (2021) Records of Parochlus steinenii in the Maritime Antarctic and sub-Antarctic regions. ZooKeys 1011: 63-71. https://doi.org/10.3897/zookeys.1011.56833
Figure 1 Map of study area. The red circles correspond to the records of Parochlus steinenii found in this study, the green circles correspond to the bibliographic records.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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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.