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30 results for “Oswaldella”
FIGURE 2 in Breaking molds: Oswaldella laertesi, sp. nov., a unique Antarctic species of Oswaldella Stechow, 1919 (Cnidaria: Hydrozoa: Kirchenpaueriidae)
FIGURE 2. Oswaldella laertesi, sp. nov. (A) Hydrocladial branching; (B) gonotheca; (C) hydrotheca in lateral view; (D) hydrotheca in frontal view; (E) mesial inferior nematotheca (see arrow); (F) mesial superior nematophore (see arrow); (G) cauline apophyses showing "mamelons" (see arrows); (H) cauline apophysis showing axillary nematophores (see arrows) (A–F from Holoype; G–H from Paratype). Scale bars: 200 µm (A–B), 100 µm (C–H).
FIGURE 1 in Breaking molds: Oswaldella laertesi, sp. nov., a unique Antarctic species of Oswaldella Stechow, 1919 (Cnidaria: Hydrozoa: Kirchenpaueriidae)
FIGURE 1. Oswaldella laertesi, sp. nov. (A) Hydrocladial branching and arrangement of hydrothecae and gonothecae; (B) cauline apophysis with "mamelons" and first forked hydrocladial internode; (C) forked hydrocladial internode showing branching, mesial inferior nematophore and superior nematophores; (D–H) unforked hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings from the Holotype). Scale bar: 1 mm (A), 250 µm (B–H).
FIGURE 19 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 19. Cauline apophysis showing axillary nematophores and, when present, 'mamelons'. A, Oswaldella bifurca; B, Oswaldella delicata; C, Oswaldella elongata; D, Oswaldella erratum; E, Oswaldella frigida; F, Oswaldella garciacarrascosai; G, Oswaldella grandis; H, Oswaldella incognita. Scale bar: 20 µm (A–H).
FIGURE 16 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 16. Detail of the area from which mesial nematophore emerges. A, Oswaldella bifurca; B, Oswaldella delicata; C, Oswaldella elongata; D, Oswaldella erratum; E, Oswaldella frigida; F, Oswaldella garciacarrascosai; G, Oswaldella grandis; H, Oswaldella incognita; I, Oswaldella laertesi; J, Oswaldella niobae; K, Oswaldella rigida; L, Oswaldella shetlandica; M, Oswaldella stepanjantsae; N, Oswaldella vervoorti; O, Oswaldella sp. Scale bar: 20 µm (A–O).
FIGURE 18 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 18. Unforked hydrocladial internodes, showing hydrotheca, mesial superior nematophore and mesial inferior nematotheca A, Oswaldella laertesi; B, Oswaldella niobae; C, Oswaldella rigida; D, Oswaldella shetlandica; E, Oswaldella stepanjantsae; F, Oswaldella vervoorti; G, Oswaldella sp. Scale bar: 100 µm (A–G).
FIGURE 15 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C–D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B–D) and 20 µm (E).
FIGURE 13 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 13. Oswaldella stepanjantsae El Beshbeeshy, 1991. A, hydrocladial branching and disposition of hydrothecae; B–C, cauline apophysis showing axillary nematophores and 'mamelons' (note the presence of much-reduced nematothecae in B); D– E, unforked hydrocladial internodes (D frontal view, E lateral view); F–G, detail of mesial inferior nematotheca (F lateral view, G frontal view); H, gonotheca. Scale bar: 400 µm (A), 60 µm (B), 40 µm (C), 100 µm (D–E), 20 µm (F–G), 200 µm (H).
FIGURE 10 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 10. Oswaldella niobae Peña Cantero & Ramil, 2006. A, stem fragment with hydrocladium showing hydrothecal arrangement; B, cauline apophyses showing two axillary nematophores and one 'mamelon'; C, cauline apophysis with a single axillary nematophore; D–E, unforked hydrocladial internodes (D frontal view, E lateral view). Scale bar: 400 µm (A), 100 µm (D–E) and 20 µm (B–C).
FIGURE 12. Oswaldella shetlandica Stepanjants, 1979. A in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 12. Oswaldella shetlandica Stepanjants, 1979. A, hydrocladial branching and disposition of hydrothecae and gonothecae; B, cauline apophysis showing axillary nematophores and 'mamelons'; C–D, unforked hydrocladial internodes (C frontal view, D lateral view); E, distal unforked hydrocladial internode (note the sharp distal end of internode); F, gonotheca. Scale bar: 400 µm (A), 100 µm (C–E) and 50 µm (B–F).
FIGURE 9 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 9. Oswaldella laertesi Peña Cantero, 2007. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores and 'mamelons'; C–D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca; F, cross section of stem showing arrangement of cauline apophyses; G, gonotheca. Scale bar: 400 µm (A), 200 µm (C–D, F–G), 80 µm (B) and 8 µm (E).
FIGURE 7 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 7. Oswaldella grandis Peña Cantero, Svoboda & Vervoort, 1997. A, hydrocladial branching and disposition of hydrothecae; B–C, cauline apophysis with axillary nematophores and 'mamelons' (upper view); D–E, unforked hydrocladial internodes (D frontal view, E lateral view); F, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (D–E), 40 (B–C) and 20 µm (F).
FIGURE 6 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 6. Oswaldella garciacarrascosai Peña Cantero, Svoboda & Vervoort, 1997. A, hydrocladium showing hydrothecal arrangement; B, cauline apophysis with axillary nematophores and 'mamelon'; C–D, unforked hydrocladial internodes (C frontal view, D lateral view); E, gonotheca. Scale bar: 100 µm (A, C–E) and 20 µm (B).
FIGURE 8 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 8. Oswaldella incognita Peña Cantero, Svoboda & Vervoort, 1997. A, hydrocladial branching and disposition of hydrothecae; B–C, cauline apophyses showing axillary nematophores; D–E, unforked hydrocladial internodes (D lateral view, E frontal view); F, detail of mesial inferior nematotheca. Scale bar: 200 µm (A), 100 µm (C–E) and 20 µm (B–F).
FIGURE 5 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 5. Oswaldella frigida Peña Cantero & Vervoort, 2004. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis with axillary nematophore and branched hydrocladium; C, detail of cauline apophysis with axillary nematophore; D–F, unforked hydrocladial internodes (D, F frontal view, E lateral view). Scale bar: 400 µm (A–B), 100 µm (D– F) and 40 µm (C).
FIGURE 17 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 17. Unforked hydrocladial internodes, showing hydrotheca, mesial superior nematophore and mesial inferior nematotheca. A, Oswaldella bifurca; B, Oswaldella delicata; C, Oswaldella elongata; D, Oswaldella erratum; E, Oswaldella frigida; F, Oswaldella garciacarrascosai; G, Oswaldella grandis; H, Oswaldella incognita. Scale bar: 100 µm (A–H.)
FIGURE 3 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 3. Oswaldella elongata Peña Cantero, García Carrascosa & Vervoort, 1995. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis with axillary nematophores and 'mamelons'; C, detail of cauline axillary nematophores; D–E, unforked hydrocladial internodes (D frontal view, E lateral view). Scale bar: 400 µm (A), 100 µm (D–E) and 20 µm (B–C).
FIGURE 2 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 2. Oswaldella delicata Peña Cantero, Svoboda & Vervoort, 1997. A, fragment of hydrocladium showing hydrothecal arrangement; B–C, cauline apophysis with axillary nematophore (B lateral view, C upper view); D–E, hydrocladial internodes showing hydrotheca and mesial inferior nematotheca (D frontal view, E lateral view); F, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 60 µm (D–E), 20 µm (B) and 10 µm (C–F).
FIGURE 1 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 1. Oswaldella bifurca (Hartlaub, 1904). A, hydrocladial branching and disposition of hydrothecae and gonothecae; B, cauline apophysis with axillary nematophores and branched hydrocladium; C, detail of cauline axillary nematophore; D–E, hydrocladial internodes with hydrotheca, mesial superior and mesial inferior nematophores (D frontal view, E lateral view); F, detail of mesial inferior nematophore; G, gonotheca. Scale bar: 400 µm (A), 100 µm (D–E, G) and 20 µm (B–C, E).
FIGURE 4 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 4. Oswaldella erratum Peña Cantero & Vervoort, 1997. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis with axillary nematophores; C, unforked hydrocladial internode showing hydrothecal aperture and mesial superior and mesial inferior nematophores; D–E, unforked hydrocladial internodes (D frontal view, E lateral view); F, detail of mesial inferior nematotheca; G, gonotheca. Scale bar: 400 µm (A), 200 µm (F), 80 µm (D–E), 50 µm (B–C) and 20 µm (G).
FIGURE 14 in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus
FIGURE 14. Oswaldella vervoorti Peña Cantero & García Carrascosa, 1998. A, hydrocladial branching and disposition of hydrothecae and gonothecae; B, cauline apophysis showing axillary nematophores and 'mamelon' (note the presence of muchreduced nematothecae); C–D, unforked hydrocladial internodes (C frontal view, D lateral view); E, detail of mesial inferior nematotheca; F, inmature gonotheca. Scale bar: 400 µm (A), 60 µm (C–D), 40 µm (B, F) and 10 µm (E).
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