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FIGURE 3 in Tardigrada and Rotifera from moss microhabitats on a disappearing Ugandan glacier, with the description of a new species of water bear

FIGURE 3. Adropion afroglacialis sp. nov.: A—bucco-pharyngeal apparatus, holotype (PCM), B—bucco-pharyngeal apparatus, holotype (DIC), C—pharyngeal structures, holotype (PCM), D—annulation of the pharyngeal tube, paratype (SEM). All scale bars in micrometres.

FIGURE 4 in Tardigrada and Rotifera from moss microhabitats on a disappearing Ugandan glacier, with the description of a new species of water bear

FIGURE 4. Adropion afroglacialis sp. nov.: A—claws I, paratype (PCM), B—claws II, paratype (SEM), C—claws IV, paratype (PCM), D—claws IV, paratype (SEM), E—claws IV and cloaca, paratype (SEM). Arrowheads indicate poorly visible pseudolunulae. All scale bars in micrometres.

FIGURE 6 in Tardigrada and Rotifera from moss microhabitats on a disappearing Ugandan glacier, with the description of a new species of water bear

FIGURE 6. Rotifera: A, B—trophi of bdelloid rotifers, C—adult bdelloid rotifer. All scale bars in micrometres.

FIGURE 2 in Tardigrada and Rotifera from moss microhabitats on a disappearing Ugandan glacier, with the description of a new species of water bear

FIGURE 2. Adropion afroglacialis sp. nov.: A—habitus, holotype, dorso-ventral projection (PCM), B—granulation on the dorsal side in the middle section of holotype indicated by arrows (PCM), C—granulation on the dorsal side of paratype (PCM), D—granulation on the dorsal side in the anterior section of holotype indicated by arrows (DIC), E—granulation on the III leg of paratype (PCM). All scale bars in micrometres.

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FIGURE 3 in Key to the currently recognized species of Limnias Schrank, 1803 (Rotifera, Monogononta, Gnesiotrocha, Flosculariidae)

FIGURE 3. Two rare Limnias species. (A) Limnias myriophylli. (B) Limnias shiawasseensis (Line art as indicated; photomicrograph of Specimen Preparation ANSP 486 [collected by C.F. Rousselet] courtesy of C. Jersabek; The Academy of Natural Sciences of Drexel University). Symbols: ctb = clear tube base; f = foot; s = substratum; bar = 100 µm.

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FIGURE 1 in Key to the currently recognized species of Limnias Schrank, 1803 (Rotifera, Monogononta, Gnesiotrocha, Flosculariidae)

FIGURE 1. Representative morphology of two species of Limnias. (A) Limnias melicerta in ventral view. (NB: Ventral antennae on the opposite side obscured.) Inset: Region of dorsal nodules: (3 rows: 2,3,2). (B) L. melicerta in 3/4th ventral view. (C) Limnias ceratophylli in 3/4th ventral view. Symbols: a = algae and debris; b = adult body; c = corona; dn = dorsal nodules; e = amictic embryo; f = foot; rt = ringed tube; s = substratum; st = stucco-like tube (with adhering epiphytes and debris); va = ventral antennae; bars ~100 µm. (Photomicrographs B and C are courtesy of Michael Plewka.)

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FIGURE 2 in Key to the currently recognized species of Limnias Schrank, 1803 (Rotifera, Monogononta, Gnesiotrocha, Flosculariidae)

FIGURE 2. Two very rare Limnias species, each of which has been reported only once. (A) Limnias cornuella (Line art of four figures from Rousselet, 1889); (B) Limnias nymphaea (Line art of three figures from Stenroos, 1898). Symbols: dn = dorsal nodules; rt = ring tube; s = substratum.

FIGURE 5 in Taxonomic morphology of the genus Adineta (Rotifera: Bdelloidea: Adinetidae) with a new species from a suburban garden

FIGURE 5. Variability of the number of U-gaps on the rakes of Adineta beysunae sp. nov. A, paratype No. 15 with 9–9 Ugaps; B, paratype No. 13 with 9–10 U-gaps; C, paratype No. 4 with 10–10 U-gaps. Arrow marks the lower lip, numbers mark the outermost and the innermost U-gaps.

FIGURE 9 in Taxonomic morphology of the genus Adineta (Rotifera: Bdelloidea: Adinetidae) with a new species from a suburban garden

FIGURE 9. Scatter plot of the percent relative length of rump plus foot (100 x RF/TL) against the total body length (TL) for Adineta beysunae sp. nov. (filled circles), Adineta cf. steineri (open circles) and eight additional Adineta variants (squares). Each variant is represented by two or three longest specimens.

FIGURE 6 in Taxonomic morphology of the genus Adineta (Rotifera: Bdelloidea: Adinetidae) with a new species from a suburban garden

FIGURE 6. Variability of the rostral setae lengths of Adineta beysunae sp. nov. A, paratype No. 24 (compressed) with long setae. Arrows mark the gland-like organs lateral to rakes; B, paratype No. 11 (compressed) with long setae; C, same individual as in B two days later with short setae; D, paratype No. 14 with unsymmetric setae.

FIGURE 2 in Taxonomic morphology of the genus Adineta (Rotifera: Bdelloidea: Adinetidae) with a new species from a suburban garden

FIGURE 2. Comparison of the rakes of four Adineta variants. Measurements of the head dimensions (HL and HW) and the rake widths (RkW; broken line) are explained in B and D, respectively. A, variant adbh200717, 4–4 U-gaps, RkW: 14.6 µm; B, variant b6.250517, 5–5 U-gaps, RkW: 18.3 µm; C, variant b1.060414, most specimens with 6–6, but this one with 6–7 U-gaps, RkW: 19.8 µm; D, Adineta cf. steineri, 9–9 U-gaps, RkW: 21.0 µm. Arrows mark the lower lips, arrow heads mark the outermost and the innermost denticles.

FIGURE 8 in Taxonomic morphology of the genus Adineta (Rotifera: Bdelloidea: Adinetidae) with a new species from a suburban garden

FIGURE 8. Morphological details of Adineta beysunae sp. nov. A, posterior half of the paratype No. 6 (slightly compressed) showing the stomach lumen (arrow), demarcations of the foot pseudosegments (top arrow heads), the lateral corner of the first rump pseudosegment and dorsal thickenings on the first and the second foot pseudosegments (bottom arrow heads); B, lateral view of the foot and one spur of the paratype No. 1; C, spurs of the paratype No. 18; D, stippling on the integument over the trunk of the paratype No. 9 after its insides had been cleared with SDS (stack of six images); E, an egg of the holotype (stack of 2 images).

FIGURE 4. Holotype and a in Taxonomic morphology of the genus Adineta (Rotifera: Bdelloidea: Adinetidae) with a new species from a suburban garden

FIGURE 4. Holotype and a paratype of Adineta beysunae sp. nov. A, live holotype, dorsal view; B, preserved and mounted holotype (contracted) stained with neutral red (stack of 2 images); C, live paratype No. 23. Arrows mark the swelling lateral to the rake, the posterior corner of the first rump pseudosegment and the lateral projections on the first and second foot pseudosegments.

FIGURE 1 in Taxonomic morphology of the genus Adineta (Rotifera: Bdelloidea: Adinetidae) with a new species from a suburban garden

FIGURE 1. Three Adineta variants with different lengths of rump plus foot. A, Adineta cf. steineri and its egg. The total body length (TL) was measured between the vertical bars marking the extremities of the specimen; B, variant b3.010815 with a tuberculated integument; C, variant b3.250517. For easy comparison of body proportions, the TLs were equalized. Arrows point at the approximate beginning of the rump.

FIGURE 7 in Taxonomic morphology of the genus Adineta (Rotifera: Bdelloidea: Adinetidae) with a new species from a suburban garden

FIGURE 7. Trophi and the rostrum of Adineta beysunae sp. nov. and the rostrum of Adineta cf. steineri. A, trophi of the paratype No. 9 (stack of 2 images); B, lateral view of the rostrum of the preserved and stained paratype No. 3 showing the auricle (a) with setae (s) and the ventral hook-like lamella (h) (stack of three images); C, rostrum of the holotype showing the folds of the integument that form the auricles and the individual setae in each bundle; D, rostrum of Adineta cf. steineri, showing the individual setae in each bundle.

FIGURE 5 in New species and records of Colurella (Rotifera: Lepadellidae) from South China, with a key to Chinese Colurella

FIGURE 5. Colurella sp. A, C. Left lateral view. B. Ventral view. D. Dorsal view. Scale bar: A–D: 50 µm.

FIGURE 3 in New species and records of Colurella (Rotifera: Lepadellidae) from South China, with a key to Chinese Colurella

FIGURE 3. Colurella ovalis sp. nov., scanning electron microscope photographs of trophi. A. Incomplete set, ventral view. B. Incomplete set, dorsal view. C. Right uncus and ramus, ventral view. D. Left ramus, frontal view. E. Right uncus, ventral view. F. Left uncus, ventral view. G. Left manubrium, ventral view. H. Right manubrium, ventral view. I. Right manubrium, dorsal view. Scale bar: A–I: 1 µm. ba: basal apophysis, bf: basifenestra, cr: crista rami, dc: dorsal manubrium chamber, f: fulcrum, mau: major uncini; mc: median manubrium chamber, miu: minor uncini; pt: preuncinal tooth; r: ramus, su: subuncus, u: uncus, vc: ventral manubrium chamber.

FIGURE 8 in New species and records of Colurella (Rotifera: Lepadellidae) from South China, with a key to Chinese Colurella

FIGURE 8. Light microscope photograph of Colurella psammophila Segers & Chittapun, 2001. A–O, T. Left lateral view. P, Q. Dorsal view. R. Ventral view. S. Ventrolateral view. U. C. psammophila (?), left lateral view. Scale bar: A–H: 50 µm. A–C: live animals collected from Qi'ao Island on 28 July, 2018; D–T: fixed specimens all from one sample of the mangrove swamp site collected on 30 August, 2007; H: specimen collected from the artificial pond site on 26 May, 2007.

FIGURE 6 in New species and records of Colurella (Rotifera: Lepadellidae) from South China, with a key to Chinese Colurella

FIGURE 6. Colurella cf. psammophila. A, C. Left lateral view. B, E. Ventral view. D. Dorsal view. Scale bar: A–E: 50 µm.

FIGURE 2 in New species and records of Colurella (Rotifera: Lepadellidae) from South China, with a key to Chinese Colurella

FIGURE 2. Light microscope photographs of Colurella ovalis sp. nov. A, D. Right lateral view. B, E. Left lateral view. C. Dorsal view. F. Ventral view. Scale bar: A–F: 50 µm.