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120 results for “Naididae”
FIGURE 6. Sepedonella nana. A, B, anterior spiracle. A in Biology of the Afrotropical Sepedonella nana (Diptera: Sciomyzidae), whose larvae feed only on freshwater Aulophorus furcatus (Oligochaeta: Naididae)
FIGURE 6. Sepedonella nana. A, B, anterior spiracle. A, second instar; B, third instar. C–F, first instar abdominal segments. C, dorsal subdivision in three transversal bands (bt1-bt3) of abdominal segment 1 (ab1); D, dorsolateral view of abdominal segments 6 and 7 showing mainly lateral tubercles (lt1-lt3) and placements of sensilla; E, disposition of the three ventral tubercles (vt1-vt3) on an abdominal hemi-segment; F, enlargement of ventral tubercle vt2 showing an apparent additional sensillum due to exceptional arrangement of some cuticular expansions (arrow) delimiting the ventral tubercle. ab1, ab6, ab7, ab8, abdominal segments 1, 6, 7; as, anterior spiracle; bt1-3, transversal band 1–3; lt1-3, lateral tubercles 1–3; mb, membrane; pa, papilla; ss, stigmatic scar; sw t, swimming tuft; vt1-vt3, ventral tubercles 1–3; Arabic numbers, number affected to each sensillum.
FIGURE 4 in Biology of the Afrotropical Sepedonella nana (Diptera: Sciomyzidae), whose larvae feed only on freshwater Aulophorus furcatus (Oligochaeta: Naididae)
FIGURE 4. Feeding behaviour of Sepedonella nana larvae (predator) on Aulophorus furcatus oligochaete (prey). A, thirdinstar larvae (L3) attacking and eating A. furcatus inside of their tube. B, assemblage of A. furcatus attacked by different instarlarvae of S. nana. C, naked A. furcatus. D, A. furcatus escaping the assaults of the sciomyzid larva moving back out at the end of its tube. E, details on duration (in days) of immature instars and total life cycle. L1, L3, first- and third-instar larva.
FIGURE 3 in Biology of the Afrotropical Sepedonella nana (Diptera: Sciomyzidae), whose larvae feed only on freshwater Aulophorus furcatus (Oligochaeta: Naididae)
FIGURE 3. Sepedonella nana, population dynamic of the adults in temporary freshwater habitats in Benin. Two other constant sciomyzid species always found together and rainfall are indicated for each cited year.
FIGURE 1. A in Biology of the Afrotropical Sepedonella nana (Diptera: Sciomyzidae), whose larvae feed only on freshwater Aulophorus furcatus (Oligochaeta: Naididae)
FIGURE 1. A, location of the Republic of Benin in West Africa. B, Sepedonella nana, first distribution map in Republic of Benin based on our field prospection during the period 1996–2008. Only localities quoted in the present work are indicated here.
FIGURE 5. Sepedonella nana. A–C, egg. A, anterior end showing general aspect. B in Biology of the Afrotropical Sepedonella nana (Diptera: Sciomyzidae), whose larvae feed only on freshwater Aulophorus furcatus (Oligochaeta: Naididae)
FIGURE 5. Sepedonella nana. A–C, egg. A, anterior end showing general aspect. B, anterior end, ventral view noted by presence of the micropyle (mi). C, posterior end. D–G, first-instar larva. D, cephalic (I) and the two first thoracic (II, III) segments, frontoventral view. E, cephalic segmented frontal view. F, part of the first thoracic segment, latero-ventral view. G, Keilin organ. Arabic numbers, position of sensilla from ventral to dorsal on each segment; dotted lines, separation of segments. ae, aeropyles; ant, anterior extremity; ao, antennal organ; ce, cuticular expansion; dr, dorsal ridge; hx, hexagonal structure; ko, Keilin organ; lr, lateral ridge; ls, labial sensilla; m, mouth; mi, micropyle; mo, maxillary organ; pos b, post oral spinule band; Tsv B, transversal spinulated ventral band; I–III, segments 1–3; Arabic numbers, number affected to each sensillum.
FIGURE 2 in Biology of the Afrotropical Sepedonella nana (Diptera: Sciomyzidae), whose larvae feed only on freshwater Aulophorus furcatus (Oligochaeta: Naididae)
FIGURE 2. Sepedonella nana, population dynamic of the adults in permanent freshwater habitats in Benin. Two other constant sciomyzid species always found together and rainfall are indicated for each cited year.
FIGURE 9. Sepedonella nana, cephalopharyngeal skeleton. A–B in Biology of the Afrotropical Sepedonella nana (Diptera: Sciomyzidae), whose larvae feed only on freshwater Aulophorus furcatus (Oligochaeta: Naididae)
FIGURE 9. Sepedonella nana, cephalopharyngeal skeleton. A–B, first-instar larva. A, anterior part, details. B, entire view. C– I, second-instar larva. C, entire view. D, epistomal sclérite and parastomale bars. E, general disposition of épistomal slerite, parastomal bars and hypostomal sclérite (idem in follow stadium). F, mouthhook. G, ventral arch. H, lingual slerite. I, hypostomal sclerite. J–O, third-instar larva. J, entire. K, epistomal sclerite; L, mouthhook; M, ventral arch; N, lingual sclerite; O, hypostomal sclerite. da, accessory teet; dc, dorsal cornua; es, épistomal sclérite; hs, hypostomal sclerite; ls, lingual sclerite; mh, mouthhook; pb, parastomal bar; ps, pharyngeal sclérite; va, ventral arch; vc, ventral cornua.
FIGURE 1. Pristina armata n in Description of Pristina armata n. sp. (Clitellata: Naididae: Pristininae) from a carnivorous plant (Nepenthes sp.) in Borneo, Indonesia
FIGURE 1. Pristina armata n. sp. A. Location of the type locality (circle) on the island of Borneo. B. Position of holotype and the paratypes (A–E) mounted together on one microscopic slide. C. Paratype: specimen with prostomium as wide as long, arrow: sign of future fission. D. Holotype, arrow: dorsal giant hook-like chaeta at IV and hair chaetae at II–V.
FIGURE 2. Pristina armata n in Description of Pristina armata n. sp. (Clitellata: Naididae: Pristininae) from a carnivorous plant (Nepenthes sp.) in Borneo, Indonesia
FIGURE 2. Pristina armata n. sp. A. Holotype, sexually immature, with giant dorsal chaetae. B. Dorsal giant hook-like chaeta at IV; C. Dorsal needle chaeta at V. D. Dorsal needle chaeta at VI. E. Ventral bifid chaeta at IV.
FIGURE 1 in Records of Naididae and Lumbriculidae (Clitellata) from Tibet, China, with description of a new species of Nais
FIGURE 1. Sampling sites in Tibet. A. Map of China. B. Sampling sites of Yarlung Zangbo River, Lhasa River, Niyang River, Lake Yamzho Yumco, Lake Namco and Lalu Wetland, respectively.
FIGURE 4. Nais longidentata n in Records of Naididae and Lumbriculidae (Clitellata) from Tibet, China, with description of a new species of Nais
FIGURE 4. Nais longidentata n. sp. A–C. Ventral chaetae (III, VI, posterior, respectively). D. Needles. E. Penial chaetae. F. Lateral view of sexual organs in segments V–VI. Scale bar: A–D 20 Μm; E 50 µm, F 100 µm.
FIGURE 2 in Records of Naididae and Lumbriculidae (Clitellata) from Tibet, China, with description of a new species of Nais
FIGURE 2. Chaetogaster diaphanus (Gruithuisen, 1828). A–C. Ventral chaetae (A: VI; B: II; C: posterior). D–F. Penial chaetae. G. Ventral view of sexual organs in segments IV–VI. Scale bars: A–F 40 µm, G 160 µm.
FIGURE 6 in Records of Naididae and Lumbriculidae (Clitellata) from Tibet, China, with description of a new species of Nais
FIGURE 6. Rhyacodrilus stephensoni Černosvitov, 1942. A. Spermathecal chaeta. B. Dorsal chaeta. C. Lateral view of male duct and spermatheca in segments X–XI. Scale bars: A–B 20 Μm, C 80 Μm.
FIGURE 3 in Records of Naididae and Lumbriculidae (Clitellata) from Tibet, China, with description of a new species of Nais
FIGURE 3. Nais elinguis Müller, 1774. A. Needle chaeta. B. Penial chaeta. C. Ventral view of sexual organs in segments V– VI. Scale bars: A–B 20 µm, C 40 µm.
FIGURE 5 in Records of Naididae and Lumbriculidae (Clitellata) from Tibet, China, with description of a new species of Nais
FIGURE 5. SEM (A–E) and optical microscope (F) micrographs of Nais longidentata n. sp. A–B. Ventral chaetae in IX (A) and XIII (B). C. Hair in VII. D–E. Needles in X (D) and a posterior segment (E). F. Lateral view of anterior body. Scale bars: A,B, D 20µm, C 5µm, E 10 µm.
FIGURE 4. Limnodrilus profundicola. A–D in Limnodrilus sulphurensis n. sp., from a sulfur cave in Colorado, USA, with notes on the morphologically similar L. profundicola (Clitellata, Naididae, Tubificinae)
FIGURE 4. Limnodrilus profundicola. A–D. Atrium and penis sheath: A, from Lake Biwa, Japan; B, from Lake Michigan, USA; C, from Lake Peipsi, Estonia; D, from Lake Kuril'skoe, Kamchatka. E. Spermatheca, from Lake Peipsi, Estonia. F. Spermatheca, from Lake Michigan, USA. G. A ventral chaetal bundle in VI, from Pärnu River, Estonia. H. Three ventral chaetae in VIII, from Lake Michigan, USA. I. Ventral chaetae in VII, Pärnu River, Estonia. J. Ventral chaetae in IV, Lake Michigan. K. Head of penis sheath, Lake Michigan, USA.
FIGURE 3. Limnodrilus sulphurensis n in Limnodrilus sulphurensis n. sp., from a sulfur cave in Colorado, USA, with notes on the morphologically similar L. profundicola (Clitellata, Naididae, Tubificinae)
FIGURE 3. Limnodrilus sulphurensis n. sp. from Sulphur Cave. A. Dorsal and ventral chaetae from anterior segments, worm mounted in Canada balsam. B. Ventral chaetae in V, worm mounted in CMC-10. C. Ventral chaetae in VI, from the holotype. D. Dorsal chaetae in XLVII. E. Lateral view of segments V and VI, in a cleared whole mount, showing beginning of chloragogen in VI. F. Sagittal section from a posterior segment, showing dark chloragogen, a transverse blood vessel, and capillary vessels in epidermal layer. G, H. Sections through atria, showing junction with prostate gland. I. Penis sheaths, from a whole mount. J. Penis sheath, from the holotype. K. Ectal end of penis and sheath, from a sectioned, mature worm fixed in formalin. L. Ectal end of penis sheath, from a sectioned, nearly mature, unmated worm fixed in FAA. M. Spermatheca, from a transverse section. N. Spermatozeugma, from the holotype. O. Detail of spermathecal duct. Scale bars: 50 µm (A–D, F–H, K, L, N, O), 100 µm (E, I, J, M).
FIGURE 2. Limnodrilus sulphurensis n in Limnodrilus sulphurensis n. sp., from a sulfur cave in Colorado, USA, with notes on the morphologically similar L. profundicola (Clitellata, Naididae, Tubificinae)
FIGURE 2. Limnodrilus sulphurensis n. sp. from Sulphur Cave (A–D, F, G) and from Black Sulphur Springs (E), reproductive characters. A. Atrium and penis sheath of an unmated, nearly mature worm. B. Atrium and penis sheath from a mature, mated worm. C. Male duct from a mated worm. D, E. penis sheaths. F. Spermatozeugmata. G. Spermatheca.
FIGURE 1. Limnodrilus sulphurensis n in Limnodrilus sulphurensis n. sp., from a sulfur cave in Colorado, USA, with notes on the morphologically similar L. profundicola (Clitellata, Naididae, Tubificinae)
FIGURE 1. Limnodrilus sulphurensis n. sp. from Sulphur Cave, exterior and somatic characters. A. Anterior ends of two whole, unmounted worms. B. Ventral chaetal bundle in IV, from a mature worm (n=19, including 10 partially developed). C. Left to right: two ventral chaetae in V, one from XX, from a mature worm. D. Ventral chaetae (n=13, including 6 partially developed) in V, from a very small, immature worm (diameter 0.3 mm). E. Dorsal chaetae from a mature worm, two each from V, X, and XXX. F. Ventral view of blood vessels in a posterior segment, showing junction of capillary vessels with ventral blood vessel, lateral vessels and (laterally displaced) dorsal blood vessel. G. Lateral view of dorsal and ventral blood vessels, as in Figure 1F.
FIGURE 2 in A new naidid oligochaete species (Annelida, Clitellata, Naididae) from Vietnam with asexual reproduction by fragmentation
FIGURE 2. Details of the morphology of Bratislavia gusevi sp. n. A. Entire body of the holotype, dorsolateral view. B. Body surface, dorsal view. C. Coelomocytes (clm) in mid-body region. D. Anterior body part of a complete individual, lateral view. E. Posterior body part of a complete individual, lateral vie; F. Posterior end of an individual devoid of the tail part of the body, lateral view. Roman numerals (here and in the following figure): segment numbers, EN: position of the enlarged needle chaetae.
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