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72 results for “Arcellinida”
Fig. 5 in Neotypification of Difflugia biwae (Amoebozoa: Tubulinea: Arcellinida) from the Lake Biwa, Japan
Fig. 5. Scanning electron micrographs of the shell of Difflugia biwae. A, Lateral view of whole shell; B, apertural view showing the circular aperture is surrounded by a conspicuous great collar flare; C, lateral-apertural view of collar flare; D, composed of mineral particles or diatom frustules (typically Praestephanos suzukii, endemic diatom of Lake Biwa) as xenosomes, captured from their environment; E, detail of surface of collar flare rim (inside) with small angular particles and flattish pieces of quartz; F, detail of surface of collar flare rim (outside); G, tip of the protuberance with flattish pieces of quartz. Sampling data of these specimens was given as Morph#1 in the Materials and Methods section. Scales are given in each photo.
FIGURE 3 in Erugomicula, a new genus of Arcellinida (testate lobose amoebae)
FIGURE 3. SEM images of Erugomicula bidens specimens from Bell's Lake, ON, Canada, showing morphological variability. Scale bar equals 100 µm. 3.1-3.3, A series of E. bidens specimens displaying the varying number of basal processes typical of the species. The number of basal processes present, including specimens with no processes present is highly variable, although morphologies with two basal processes are most common. When present the basal processes are arranged along the fundus. 3.4-3.6, A series of E. bidens specimens in side view demonstrating variations in the length-to-width ratio.
FIGURE 2 in Erugomicula, a new genus of Arcellinida (testate lobose amoebae)
FIGURE 2. SEM images of Erugomicula bidens showing typical morphology; images 2.1-2.4 are all relative to a 100 µm scale bar. 2.1, Original drawing of E. bidens reproduced from Penard, 1902. This specimen has been designated herein as the lectotype for E. bidens (Penard 1902). 2.2, Apertural view of E. bidens showing circular aperture and lateral compression. 2.3, E. bidens showing ovoid shape and three spines in a slightly angled face view. 2.4, Oblique view of E. bidens specimen showing lateral compression from side view. 2.5, E. bidens specimen showing slightly raised collar around aperture. Scale bar equals 250 µm. 2.6, Enlarged view of E. bidens collar. Scale bar equals 100 µm. 2.7, Broken basal process from a E. bidens specimen showing that these processes are hollow. Scale bar equals 20 µm.
FIGURE 1 in Erugomicula, a new genus of Arcellinida (testate lobose amoebae)
FIGURE 1. Original line drawings and SEM images of Difflugia proteiformis (Penard, 1902). Scale bar equals 100 µm. 1.1, Reproduction of original line drawing of D. proteiformis from Lamarck, 1816. 1.2, D. proteiformis from lake near Yellowknife, NWT, Canada. 1.3, D. proteiformis from Bell's Lake, ON, Canada.
Fig. 2 in First Records and Community Pattern of Arcellinida Inhabiting a Pristine and Remote Island from Southeastern Pacific, Chile
Fig. 2. Both images correspond to the northeastern side of the Guamblin Island ('closest' area to mainland). These images are useful to show the contrasting nature of the two types of sampled environments (treeless and forested environments). A – this photo corresponds to the sampled coastal swamp, which is located in sector Punta Piedra (see Fig. 1). This environment is dominated by Gunnera spp. and Juncus sp.; B – this photo corresponds to sector Punta Arena (see Fig. 1), and was taken from an elevation of 150 m a.s.l. In the foreground are some ferns (Lomatia ferruginea) and trees (Nothofagus spp., Amomyrtus luma and Maytenus boaria). In the background is the North Patagonian rain forest (which is mainly dominated by Nothofagus spp.) and towards the end the Southeastern Pacific. Photo credits by J. Pérez.
Fig. 1 in First Records and Community Pattern of Arcellinida Inhabiting a Pristine and Remote Island from Southeastern Pacific, Chile
Fig. 1. Map of the Guamblin Island National Park. Samples were taken at equidistant distances, ranging from sector Punta Piedra (sampling site number 1) to sector Punta Arena (sampling site number 15).
Fig. 4 in First Records and Community Pattern of Arcellinida Inhabiting a Pristine and Remote Island from Southeastern Pacific, Chile
Fig. 4. Species-accumulation curve for testate amoebae collected in the Guamblin Island. Our observed number of species was 33 (black horizontal line). This value was consistent with the estimate species richness curve based on Chao1 (black irregular line). Upper and lower confidence intervals are shown as gray dotted lines (calculated using 1,000 permutations without replacement).
FIGURE 6 in Frenopyxis stierlitzi gen. nov., sp. nov.-new testate amoeba (Amoebozoa Arcellinida) from the urban parks with notes on the systematics of the family Centropyxidae Jung, 1942
FIGURE 6. Representatives of the genera from the family Centropyxidae. a–b—Centropyxis aculeata (after Leidy 1879), c–d—Armipyxis discoides (after Penard 1890), e–f—Proplagiopyxis nuda (after Schönborn 1964), g–h—Centropyxiella lucida (after Golemansky 1971), i–j—Collaropyxidia stankovići (after Živković 1975), k–m—Conicocassis pontigulasiformis (after Nasser & Patterson 2015), n–o—Oopyxis danubialis (after Godeanu 1972).
FIGURE 4 in Frenopyxis stierlitzi gen. nov., sp. nov.-new testate amoeba (Amoebozoa Arcellinida) from the urban parks with notes on the systematics of the family Centropyxidae Jung, 1942
FIGURE 4. Morphometric comparison of populations (marked by the name of the tree and height of the hollow position): asize distribution in shell length—shell breadth space; b—size distribution in aperture length—aperture breadth space; c—shell length / shell breadth (l/b) ratio and aperture length / aperture breadth (lps/bps) ratio; d—ration of specimens with circular shells (% shell) and with circular apertures (% apert). Whiskers—standard error of the arithmetic mean.
FIGURE 7 in Frenopyxis stierlitzi gen. nov., sp. nov.-new testate amoeba (Amoebozoa Arcellinida) from the urban parks with notes on the systematics of the family Centropyxidae Jung, 1942
FIGURE 7. Centropyxis with the apertural tube: a—C. ecornis, b—C. sphagnicola. After Dekhtjar, 2009.
Figure 3 in Multiple convergences in the evolutionary history of the testate amoeba family Arcellidae (Amoebozoa: Arcellinida: Sphaerothecina): when the ecology rules the morphology
Figure 3. Galeripora succelli: scanning electron micrographs of the aboral and oral sides of the test. The images on the right represent a detail of the test and the structure of the aperture. Below left, a photograph of a typical habitat for the species, a peat bog. Above left, original drawing of the closest known resembling species, Galeripora artocrea (Leidy, 1879).
MI Dataset(Arcellinida)
<p>Arcellinida in activated sludge.</p>
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