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25 results for “Limnesia”
Figure 8 in Ultrastructure of the prosomal gland complex in unfed larvae of the fresh-water mite Limnesia maculata (Müller, 1776) (Acariformes, Limnesiidae)
Figure 8 Organization of the labyrinth of coxal glands in unfed larvaeL. maculata.TEM. a – Central portion of the labyrinth with a conspicuous central lumen filled with various membranous and granular structures. Scale bar – 2 μm; b – Portion of the labyrinth with a collapsed lumen penetrated by microvilli. Scale bar – 2 μm; c – Basal lamina penetrating between the gland cells at their base (arrow). Scale bar – 0.5µζ; d – Portion of the convoluted labyrinth showing semi-circled mutual invagination of the gland cells (arrow). Scale bar – 1 μm; e – The apical cell contact with hardly distinguishable septate junction (arrow). Note axial filaments within microvilli (arrowheads). Scale bar – 0.5 μm. gl – glycogen; gll – gland lumen; m – mitochondria; mg – midgut; mt – microtubules; mv – microvilli; n – nucleus; nu – nucleolus; rb – residual body; rer – rough endoplasmic reticulum.
Figure 1 in Ultrastructure of the prosomal gland complex in unfed larvae of the fresh-water mite Limnesia maculata (Müller, 1776) (Acariformes, Limnesiidae)
Figure 1 Podocephalic glands in unfed larvaeL. maculatain sagittal sections. TEM. a – Nearly axial section showing two medial glands located one after another as well as pharynx and chelicera. Scale bar – 20 μm; b – Section slightly apart from the axial line showing medial glands and podocephalic canal.Arrow indicates long extensions of the duct-forming cells flanking lateral lacunas of the intra-alveolar lumen. Scale bar – 10 μm; c – Section through the region of the origin of leg I showing the lateral and the ventral glands as well as the terminal bladder of the coxal gland in a nearly collapsed condition. Scale bar – 20 μm. amg – anterior medial gland; bl – bladder; br – brain; ch – chelicera; hem – hemocyte; ial – intra-alveolar lumen; lg – lateral gland; legI – leg I; ms – muscles; pc – podocephalic canal; ph – pharynx; pmg – posterior medial gland; schs – subcheliceral space; vg – ventral gland.
FIGURES 1516. Limnesia rotoruaensis n in Two new water mite species from New Zealand (Acari: Hydrachnidia)
FIGURES 1516. Limnesia rotoruaensis n. sp., 15, paratype female, ventral view; 16, paratype female, genital field
FIGURES 1112. Limnesia rotoruaensis n in Two new water mite species from New Zealand (Acari: Hydrachnidia)
FIGURES 1112. Limnesia rotoruaensis n. sp., holotype male, dorsal platelet with accompanying glandularia; 12, holotype male, palp.
FIGURES 910. Limnesia rotoruaensis n in Two new water mite species from New Zealand (Acari: Hydrachnidia)
FIGURES 910. Limnesia rotoruaensis n. sp. 9, holotype male, ventral view; 10, holotype male, genital field.
FIGURE 8 in Water mites of the genus Limnesia Koch, 1836 (Acari: Hydrachnidia, Limnesiidae) from China, with description of four new species
FIGURE 8. Limnesia turgeotrochanter sp. nov., female, A—idiosoma, ventral view, B—idiosoma, dorsal view, Cgenital field, D—palp, lateral view, E—infracapitular, lateral view, F—I-L-5, 6, G—IV-L-5. Bars = 100Μm.
FIGURE 5 in Water mites of the genus Limnesia Koch, 1836 (Acari: Hydrachnidia, Limnesiidae) from China, with description of four new species
FIGURE 5. Limnesia megaseta sp. nov. A—idiosoma, ventral view,male, B—idiosoma, dorsal view, male, Cidiosoma, lateral view, male, D—idiosoma, ventral view, female, E—idiosoma, dorsal view, female, F—genital field, male, G—lateral view of female infracapitular, H—palp, lateral view, female, I—infracapitular, lateral view, male, Jpalp, lateral view, male, K—IV-L-5, 6, male, L—I-L-5, 6, male. Bars = 100Μm.
FIGURE 2 in Water mites of the genus Limnesia Koch, 1836 (Acari: Hydrachnidia, Limnesiidae) from China, with description of four new species
FIGURE 2. Limnesia hirtigenitalia sp. nov. A—idiosoma, ventral view, male, B—idiosoma, ventral view, female, Cidiosoma, dorsal view, male, D—genital field, female, E—genital field, male, F—palp, lateral view, male, Ginfracapitular, lateral view, male, H—chelicera, lateral view, male, I—I-L-5, 6, male, J—IV-L-5, 6, male. Bars = 100Μm.
FIGURE 7 in Water mites of the genus Limnesia Koch, 1836 (Acari: Hydrachnidia, Limnesiidae) from China, with description of four new species
FIGURE 7. Limnesia turgeotrochanter sp. nov., male, A—idiosoma, ventral view, B—idiosoma, dorsal view, Cidiosoma, lateral view, D—genital field, E—palp, lateral view, F—chelicera, lateral view, G—infracapitular, lateral view, H—I-L-5, 6, I—IV-L-5, 6, Bars = 100Μm.
FIGURE 4 in Water mites of the genus Limnesia Koch, 1836 (Acari: Hydrachnidia, Limnesiidae) from China, with description of four new species
FIGURE 4. Limnesia maculata (Müller, 1776), female, A—idiosoma, ventral view, B—idiosoma, dorsal view, Cgenital field, D—palp, lateral view, E—I-L-5, 6, F—IV-L-5, 6. Bars = 100Μm.
FIGURE 1 in Water mites of the genus Limnesia Koch, 1836 (Acari: Hydrachnidia, Limnesiidae) from China, with description of four new species
FIGURE 1. Limnesia diploseta sp. nov. A—idiosoma, ventral view, male, B—idiosoma, dorsal view, male, Cidiosoma, ventral view, female, D—genital field, female, E—genital field, male, F—palp, lateral view, male, Ginfracapitular, lateral view, male, H—chelicera, lateral view, male, I & K—IV-L-5, 6, male (right & left), J—I-L-5, 6, male, L—IV-L-5, 6, female. Bars = 100Μm.
FIGURE 3 in Water mites of the genus Limnesia Koch, 1836 (Acari: Hydrachnidia, Limnesiidae) from China, with description of four new species
FIGURE 3. Limnesia maculata (Müller, 1776), male, A—idiosoma, ventral view, B—idiosoma, dorsal view, Cidiosoma, lateral view, D—genital field, E—infracapitular, lateral view, F—chelicera, lateral view, G—palp, lateral view, H—IV-L-5, 6. Bars = 100Μm.
FIGURE 6. Limnesia papillosa Viets, 1935 A in Water mites of the genus Limnesia Koch, 1836 (Acari: Hydrachnidia, Limnesiidae) from China, with description of four new species
FIGURE 6. Limnesia papillosa Viets, 1935 A—idiosoma, ventral view, male, B—idiosoma, ventral view, female, Cgenital field, male, D—genital field, female, E—palp, lateral view, male, F—palp, lateral view, female, G—chelicera, lateral view, male, H—infracapitular, lateral view, male, I—IV-L-5, 6, male. Bars = 100Μm.
FIGURE 9 in Water mites of the genus Limnesia Koch, 1836 (Acari: Hydrachnidia, Limnesiidae) from China, with description of four new species
FIGURE 9. Limnesia undulata (Müller, 1776). A—idiosoma, ventral view, male, B—idiosoma, dorsal view, male, C – idiosoma, ventral view, female, D—genital field, female, E—genital field, male, F—chelicera, lateral view, male, Ginfracapitular, lateral view, male, H—palp, lateral view, male, I—palp, lateral view, female, J—I-L-5,6, female. K—III- L-6, female, L—IV-L-5, 6, female, M –IV-L-5, 6, male, Bars = 100Μm.
FIGURES 14–18. Limnesia vogelkop n in New records of water mites mainly from Vogelkop, New Guinea (Acari: Hydrachnidia), with the description of one new genus and thirteen new species
FIGURES 14–18. Limnesia vogelkop n. sp., holotype male. 14. Dorsal view; 15. Ventral view; 16. Palp; 17. Palp; 18. IV-leg- 4–6. Scale bars = 50 µm.
FIGURES 8–13. Limnesia multiscutata n in New records of water mites mainly from Vogelkop, New Guinea (Acari: Hydrachnidia), with the description of one new genus and thirteen new species
FIGURES 8–13. Limnesia multiscutata n. sp., holotype female: 8. Dorsal view; 9. Ventral view; 10. Genital field; 11. Palp; 12. I-leg-4–6; 13. IV-leg-4–6. Scale bars: 8–9 = 200 µm, 10–13 = 50 µm.
Figure 10 in Ultrastructure of the prosomal gland complex in unfed larvae of the fresh-water mite Limnesia maculata (Müller, 1776) (Acariformes, Limnesiidae)
Figure 10 Organization of podocephalic glands in unfed larvaeL. maculata.TEM. a – Transformation of the end-piece of coxal gland into the bladder in longitudinal section and formation of a cuticle of the bladder arrows(). Scale bar – 2 μm; b – Formation of the cuticle of the bladder above short microvilli of the duct-forming cells (arrow). Scale bar – 1 μm; c – Concentration and joining of glands' ducts at the caudal end of the epistomal apodeme. Scale bar – 5 μm; d – The gnathosomal base in transverse section showing posterior portions of the subcheliceral cavity (arrows). Scale bar – 10 μm. amg – anterior medial gland; bl – bladder; cha – cheliceral apodeme; d – duct; dfc – duct-forming cell; epa – epistomal apodeme; glc – gland cell; gll – gland lumen; m – mitochondria; ms – muscles; n – nucleus; ph – pharynx; pmg – posterior medial gland.
Figure 9 in Ultrastructure of the prosomal gland complex in unfed larvae of the fresh-water mite Limnesia maculata (Müller, 1776) (Acariformes, Limnesiidae)
Figure 9 Organization of labyrinth (a-b) and end-piece (c-d) of coxal glands in unfed larvae L. maculata.TEM. a – Basal portion of the gland cells bordering the brain containing a large residual body and an extensive stack of RER. Note septate junction between the adjacent cells (arrow). Scale bar – 1 μm; b – Portion of the labyrinth with a collapsed lumen and muscle fiber applying to the gland wall. Scale bar – 2 μm; c – Nerve termination with synaptic vesicles at the gland wall. Scale bar – 0.5 μm; d – Transverse section through the end-piece with a dilated lumen without microvilli. Note particular membrane profiles in the basal cell portion (arrow). Scale bar – 2 μm. bl – basal lamina; blm – basal lamina; br – brain; gll – gland lumen; h – hemacoelic space; m – mitochondria; mg – midgut; ms – muscles; mt – microtubules; mv – microvilli; n – nucleus; nu – nucleolus; rb – residual body; rer – rough endoplasmic reticulum: sv – synaptic vesicles.
Figure 6 in Ultrastructure of the prosomal gland complex in unfed larvae of the fresh-water mite Limnesia maculata (Müller, 1776) (Acariformes, Limnesiidae)
Figure 6 Lateral podocephalic glands in unfed larvaeL. maculata.TEM. a – Collapsed gland with apparent cisterns of endoplasmic reticulum and irregularly shaped vacuoles. Scale bar – 2 µζ; b – Portion of the gland at higher magnification showing the large nucleus and ER cisterns. Note vacuole with a fine-structures matrix (arrow). Arrowheadindicates a smooth basal cell zone. Scale bar – 1 µζ; c – Enlarged highly vacuolated gland tightly applied to ventral gland from above in longitudinal section. Scale bar – 5 μm; d – Central gland portion of the same gland indicating expanded intra-alveolar lumen. Arrows point to microvilli of the duct-forming cells. Scale bar – 1 μm; e – Duct base of the gland. Scale bar – 1 µζ. dfc – duct-forming cell; du – duct; dw – duct wall; er – endoplasmic reticulum; ey – eye; ial – intra-alveolar lumen; lg – lateral gland; m - mitochondria; mg – midgut; ms – muscle; n – nucleus; nu – nucleolus; v – vacuole; vg – ventral gland.
Figure 5 in Ultrastructure of the prosomal gland complex in unfed larvae of the fresh-water mite Limnesia maculata (Müller, 1776) (Acariformes, Limnesiidae)
Figure 5 Ventral podocephalic glands in unfed larvaeL. maculata.TEM. a – Compact ventral gland at the medial wall of the bladder of a coxal gland. Scale bar – 5 μm; b – Central portion of ventral gland. Note extensions of duct-forming cells flanking lacunas of the intra-alveolar lumen (arrows) and microvilli of these cells penetrating the lumen (arrowheads). Scale bar – 2 μm; c – Ventral gland on longitudinal section showing the intra-alveolar lumen. Note reinforcing bundles of fibrils within the electron-clear duct wall (arrows). Scale bar – 2 μm; d – Intra-alveolar lumen encompassed by duct-forming cells with short irregular microvilli (arrows) penetrating the lumen. Scale bar – 1 μm; e – Portion of the intra-alveolar lumen showing duct-forming cells contacting via septate junctions (arrows). Arrowheadsindicate microvilli of the duct-forming cells. Scale bar – 0.5µζ. bl – bladder; dfc – duct-forming cell; ey – eye; ial – intra-alveolar lumen; lg – lateral gland; m – mitochondria; ms – muscles; n – nucleus; nu – nucleolus; sg – secretory granules; vg – ventral gland.
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