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Fig. 6 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 6. Light microscopical image of Meisterfeldia polygonia in lateral view. A – typical specimen, B – morphological variability.

Fig. 7 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 7. Outline of Meisterfeldia polygonia: lateral (left) and ventral (right) views. 1–4 – characters of the test measured. Scale bar: 5 µm.

Fig. 5 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 5. Outline of Meisterfeldia wegeneri: lateral (left) and ventral (right) views. 1–4 – characters of the test measured. Scale bar: 5 µm.

Fig. 4 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 4. Light microscopical image of Meisterfeldia wegeneri in lateral view. A – typical specimen, B – morphological variability.

Fig. 3 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 3. Outline of Meisterfeldia chibisovi: lateral (left) and ventral (right) views. 1–4 – characters of the test measured. Scale bar: 5 µm.

Fig. 7 in Morphological and Morphometric Description of a Novel Shelled Amoeba Arcella gandalfi sp.nov. (Amoebozoa:Arcellinida) fromBrazilianContinental Waters

Fig. 7. Histograms depicting distribution of data for characters analyzed in this study. The black lines represent density curves that fit our data. Aperture height (ah), test diameter (td) and test top diameter (ttd) present a distribution similar to a bimodal distribution, while all the other characters show a nearly normal distribution. Characters tb2 and bw2 are not shown since they are equal to tb1 and bw1, respectively.

Fig. 2 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 2. Light microscopical image of Meisterfeldia chibisovi in lateral view. A – typical specimen, B – morphological variability.

Fig. 2 in Morphological and Morphometric Description of a Novel Shelled Amoeba Arcella gandalfi sp.nov. (Amoebozoa:Arcellinida) fromBrazilianContinental Waters

Fig. 2. Lateral view of six individuals of Arcella gandalfi. A and B – individuals with highest shell, top invagination is easily seen; C and D – individuals with intermediate shell height, top invagination easily seen; E and F – individuals with lowest shell height. Scale bar: 20 µm.

Fig. 1 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 1. Location of the Kytalyk study site in the northeastern Siberian lowland. Digital Elevation Model compiled by G. Grosse (AWI Potsdam).

Fig. 1 in Morphological and Morphometric Description of a Novel Shelled Amoeba Arcella gandalfi sp.nov. (Amoebozoa:Arcellinida) fromBrazilianContinental Waters

Fig. 1. Representation of measured characters. A – Arcella gandalfi in lateral view, showing aperture height (ah), test height (th), test top invagination (tti) and test top diameter (ttd). B – Arcella gandalfi in apertural view, showing the test diameter (td), aperture diameter (ad), test border 1–2 (tb1–2) and brim width 1–2 (bw1–2).

Fig. 3 in Trichodinids (Ciliophora) of Corydoras paleatus (Siluriformes) and Jenynsia multidentata (Cyprinodontiformes) from Argentina, with Description of Trichodina corydori n. sp. and Trichodina jenynsii n. sp.

Fig. 3. Photomicrographs of Trichodina jenynsii n. sp. from Jenynsia multidentata. A–C – Adhesive disc after dry silver impregnation. D – Macronucleus with methylene-blue staining. Scale bars: 10 μm.

Fig. 6 in Taxonomic and Morphogenetic Description of the Freshwater Ciliate Aponotohymena isoaustralis n. sp. (Ciliophora; Oxytrichidae) Isolated from Sanjay Lake, Delhi, India

Fig. 6. Maximum likelihood (ML) phylogenetic tree based on SSU rDNA sequences showing the position of Aponotohymena isoaustralis n. sp. using GTR + I + G as nucleotide substitution model. The new sequence from the present study is indicated by bold font (arrow). Numbers at nodes are bootstrap values from ML and the posterior probabilities from BI. Accession numbers are provided after species names. Clades representing different orders of the subclass stichotrichia are shaded. "–" at the nodes indicate disagreement between the two methods. The scale bar corresponds to 0.01 expected substitutions per site.

Fig. 5 in Taxonomic and Morphogenetic Description of the Freshwater Ciliate Aponotohymena isoaustralis n. sp. (Ciliophora; Oxytrichidae) Isolated from Sanjay Lake, Delhi, India

Fig. 5. Line diagrams and photomicrographs of Aponotohymena isoaustralis n. sp. showing morphogenetic stages on the dorsal surface after protargol impregnation. A, C – within row dorsal primordia formation for proter and opisthe with posterior thickening to form caudal cirri (arrows); B, D – unequal split of the third dorsal primordia (arrows); caudal cirri formed in 2 + 2 + 3 pattern (double arrows) at the ends of DK for proter and opisthe. Scale bar: 20 µm.

Fig. 6 in Morphological and Morphometric Description of a Novel Shelled Amoeba Arcella gandalfi sp.nov. (Amoebozoa:Arcellinida) fromBrazilianContinental Waters

Fig. 6. Morphology of Arcella gandalfi under Scanning Electron Microscopy (SEM). A and B – lateral view showing the aperture region; C – shell detail showing elongated shape of the alveolar units on the conical extension of the shell. Scale bars: 20 µm.

Fig. 4 in Taxonomic and Morphogenetic Description of the Freshwater Ciliate Aponotohymena isoaustralis n. sp. (Ciliophora; Oxytrichidae) Isolated from Sanjay Lake, Delhi, India

Fig. 4. Photomicrographs showing morphogenetic stages on ventral surface of protargol impregnated cells of Aponotohymena isoaustralis n. sp. A, B – de novo origin of OP (arrowheads); C – POVC (arrowheads) not contributing to OP; D – dissagregation of V/4 and V/3 (arrowhead), movement of kinetosomes from OP to anterior region of the cell (arrow); E – elongation of two primary primordia (arrowhead), kinetosomes moved from OP to contribute in the formation of IIp (arrow); F – splitting of primary primordia (arrowhead), composite origin of IIp from OP and cirrus II/2 (arrow); G – primordia Vp and VIp (arrowhead) formed from splitting of primary primordia; H – full complement of 6 FVT primordia (arrowheads); I – differentiation of new FVT cirri (arrowhead); J – newly formed DMs on the ventral surface (arrowhead); K – cell in cytokinesis. OP – oral primordium. Scale bar: 20 µm.

Fig. 2 in Trichodinids (Ciliophora) of Corydoras paleatus (Siluriformes) and Jenynsia multidentata (Cyprinodontiformes) from Argentina, with Description of Trichodina corydori n. sp. and Trichodina jenynsii n. sp.

Fig. 2. Photomicrographs of silver nitrate-impregnated adhesive discs of trichodinids from Jenynsia multidentata. A–B – Photomicrographs of Trichodina cribbi. Scale bars: 10 μm.

Fig. 3 in Taxonomic and Morphogenetic Description of the Freshwater Ciliate Aponotohymena isoaustralis n. sp. (Ciliophora; Oxytrichidae) Isolated from Sanjay Lake, Delhi, India

Fig. 3. Line diagrams showing morphogenetic stages on ventral surface of protargol impregnated cells of Aponotohymena isoaustralis n. sp. A, B – origin of OP apokinetally between the LMC and POVC for the opisthe; C – reorganization of parental UM (arrow), disaggregation of II/2 (arrowhead), III/2 (double arrowhead) and V/4 (double arrow) to form primordia IIp, IIIp and Vo respectively, kinetosomes from OP form primordia Io and IIo; D – dissagregation of IV/3 to form primordium IVp (arrow); kinetosomes from OP move anteriorly (arrowhead); the two primary primordia, one each formed from disaggregation of V/4 and V/3 split transversely (double arrow) to form primordia V and VI for proter and opisthe; E – full complement of 6 FVT primordia Ip to VIp (arrowhead) and Io to VIo (double arrowhead); F – within-row marginal primordia formation for RMC (arrowheads) and LMC (double arrowheads); G – differentiation of cirri in 1, 3, 3, 3, 4, 4 pattern; H – late divider showing formation of new dorsomarginals (arrowheads) close to newly formed RMC. LMC – left marginal cirri; OP – oral primordium. Scale bar: 20 µm.

Fig. 1 in Trichodinids (Ciliophora) of Corydoras paleatus (Siluriformes) and Jenynsia multidentata (Cyprinodontiformes) from Argentina, with Description of Trichodina corydori n. sp. and Trichodina jenynsii n. sp.

Fig. 1. Photomicrographs of Trichodina corydori n. sp. from Corydoras paleatus. A–B – Silver nitrate-impregnated adhesive discs. C – Methylene-blue staining of adoral ciliary spiral. D – and orcein stain of macronucleus. Scale bars: 10 μm.

Fig. 2 in Taxonomic and Morphogenetic Description of the Freshwater Ciliate Aponotohymena isoaustralis n. sp. (Ciliophora; Oxytrichidae) Isolated from Sanjay Lake, Delhi, India

Fig. 2. Line diagrams showing protargol impregnated vegetative cells of Aponotohymena isoaustralis n. sp. A – ventral surface; B – dorsal surface. AZM – adoral zone of membranelles, CC – caudal cirri, DK1–4 – dorsal kineties, DM1, 2 – dorsomarginals, EM – endoral membrane, LMC – left marginal cirri, PM – paroral membrane, RMC – right marginal cirri, II/2 – buccal cirri, I/1, II/3, III/3 – frontal cirri, VI/4, VI/3, IV/3, III/2 – frontoventral cirri, – IV/2, V/4, V/3 – postoral ventral cirri, V/2 and VI/2 – pretransverse ventral cirri, II/1, III/1, IV/1, V/1, VI/1 – transverse cirri. Scale bar: 20 µm.

Fig. 1 in Taxonomic and Morphogenetic Description of the Freshwater Ciliate Aponotohymena isoaustralis n. sp. (Ciliophora; Oxytrichidae) Isolated from Sanjay Lake, Delhi, India

Fig. 1. Photomicrographs of live (A, B, E, F, G, H, J, K), protargol impregnated (C, D, I, L, M) and Feulgen stained (N) cells of Aponotohymena isoaustralis n. sp. A, B – cells in ventral view; C – ventral view of a vegetative cell with 5 transverse cirri arranged in a pseudo row (arrow); D – dorsal view of a vegetative cell; E – ventral view to show the arrangement of cortical granules (arrowheads) and colou- ration; F, G and H – ventral view of different cells showing flexible body; I – anterior portion of the dorsal surface showing dorsal rows (arrowhead); J – anterior portion of the cell showing contractile vacuole (arrowhead); K – cyst; L – anterior hook (arrowhead) of paroral membrane; M – dorsal view showing caudal cirri (2 + 2 + 3) (arrowheads); N – two macronuclei. AZM – adoral zone of membranelles, LMC – left marginal cirri, RMC – right marginal cirri. Scale bars: 20 µm.