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Fig. 6 in Neotypification of Difflugia biwae (Amoebozoa: Tubulinea: Arcellinida) from the Lake Biwa, Japan

Fig. 6. Scatter plot of principal component scores (PC1 and PC2) performed with size-corrected data of four different sample series from Lake Biwa (1961: neotype and VSS I, 1961: Mesurement#1 and 1963: Mesurement#2) and Mulan Lake. Crosses, neotype and VSS 1; open circles, Measurement#1; filled triangles, Measurement#2; filled circles, Mulan Lake, China; arrow, neotype. Each broken line circle indicates 95% confidence limit. Table 1. Morphometric characteristics of Difflugia biwae from Lake Biwa (taken in 1961: neotype and VSS I, n=19: left, 1961: Measurement#1, n=161: middle left, 1963: Measurement#2, n=70: middle right), and from Mulan Lake (n=100: right)1. Measurements in µm. Minimum (Min), maximum (Max), arithmetic mean (X), standard deviation (SD), and coefficient of variation in % (CV).

Fig. 4 in Neotypification of Difflugia biwae (Amoebozoa: Tubulinea: Arcellinida) from the Lake Biwa, Japan

Fig. 4. Light micrographs of the shell of Difflugia biwae. A–D, Lateral views of whole shells of four different specimens with variations (A after "Photo. 1" in Ichise et al. 2004); E, apertural view showing the circular aperture is surrounded by a conspicuous great collar flare; F, apertural view showing the protuberance. Sampling data, Morph#1 in the Materials and Methods section. Scale 100 µm in A for A–D; scale 100 µm in E for E and F.

Fig. 2 in Neotypification of Difflugia biwae (Amoebozoa: Tubulinea: Arcellinida) from the Lake Biwa, Japan

Fig. 2. Shell outline and positions of measured axes used in present study: TL, total length; BW, body width; CD, collar diameter; NW, neck width; BL, body length; PD, protuberance diameter; PL, protuberance length.

Fig. 1 in Neotypification of Difflugia biwae (Amoebozoa: Tubulinea: Arcellinida) from the Lake Biwa, Japan

Fig. 1. Maps illustrating the longtime sampling in the Lake Biwa. Left upper map provides an overview of the area with frames indicating the position of the map of Lake Biwa. Codes refer to sample sites given in the Materials and Methods section; filled symbols refer to St. I–V; an open symbol refers to St. 6.

Fig. 3 in Neotypification of Difflugia biwae (Amoebozoa: Tubulinea: Arcellinida) from the Lake Biwa, Japan

Fig. 3. Line drawings of Difflugia biwae. A, Lateral view with cytoplasm (original line drawing, originally no scale: after Kawamura 1918); B, lateral view of shell (present study, scale 100 µm for B).

Fig. 10 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 10. Schematic demonstration of relationship of Meisterfeldia chibisovi sp. nov., M. wegeneri sp. nov., M. polygonia sp. nov., M. vanhoornei comb. nov. and M. turfacea comb. nov. based on morphological characters (average morphometric characteristics of species based on literature data and personal observations).

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. 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. 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).

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Fig. 9 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 9. Meisterfeldia turfacea (after Zacharias, 1903). Scale bar: 5 µm.

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Fig. 8 in Description of a New Testate Amoebae Genus Meisterfeldia with Notes on the Systematics of the Suborder Phryganellina (Amebozoa; Tubulinea; Arcellinida)

Fig. 8. Meisterfeldia vanhoornei (after: Beyens et al., 1986). Scale bar: 5 µm.

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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.