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12 results for “Hymeniacidon”
FIGURE 10 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 10. Clathria (Axosuberites) retamalesi sp. nov., holotype MNRJ 20638 (SEM of spicules). A, large styles (styles I); B, extremities of the large styles; C, larger intermediary styles (styles II); D, extremities of the styles II; E, smaller intermediary styles (styles III); F, extremities of the styles III; G, smaller styles (styles IV); H, extremities of the styles IV; I, large toxas (toxas I); J, intermediary category of toxas (toxas II); K, intermediary category of toxas (toxas III); L, small category of toxas (toxas IV); M, toxa II; N, toxa III; O, toxa IV. Scale bars: A, C, E, G = 100 µm; B, I–J = 50 µm; D, F, K–O = 25 µm; H = 5 µm.
FIGURE 7 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 7. Hymeniacidon hentscheli sp. nov., holotype (ZMH S 2343): A, styles in several size and some of them bearing an annular swell close to the base; B, detail of the extremities of styles (some smaller forms of them). Scale bars: A = 100 µm; B = 10 µm.
FIGURE 6 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 6. Hymeniacidon hentscheli sp. nov., holotype (ZMH S 2343): A, labels associated to the specimen; B, external surface of the major fragment; C, specimen turned over showing the inferior surface of the largest fragment, which was attached to the bottom; and smaller fragments pertaining to the holotype sample; D, detail of the ectosome, with abundant debris (sand grains); E, transverse section showing a reticulate skeleton and several rounded channels piercing the choanosome. Scale bars: B–C = 1 cm; D–E = 1000 µm. A–C photographs were taken by Dr. Andreas Schmidt-Rhaesa and MSc. Helma Roggenbuck (CeNak—Center of Natural History, Universität Hamburg—Zoologisches Museum).
FIGURE 8 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 8. Clathria (Axosuberites) retamalesi sp. nov. A–D, holotype (MNRJ 20638). A, preserved specimen, with visible contracted surface membrane, and oscula; B, lateral view showing compressed longitudinal columns and overall cavernous architecture C, specimen in situ, arrow points to an oscule; D, freshly collected specimen; E, specimen in situ not collected; F, another specimen in situ not collected, arrow points to an oscule. Scale bars: A–C = 1 cm; D–F = 2 cm.
FIGURE 2. Hymeniacidon torquata Topsent, 1916 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 2. Hymeniacidon torquata Topsent, 1916, habit (specimens in situ): A, specimen MNRJ 20667; B, specimen MNRJ 20689; C, specimen MNRJ 20693; D, specimen not collected; E, specimen not collected; F, specimen not collected; G, surface detail of the same specimen in " F ". Scale bars: A = 20 cm; B = 5 cm; C = 5 cm; D = 10 cm; E = 0.5 cm; F = 5 cm; G = 0.5 cm. Photographs by Dr. Cristian Lagger.
FIGURE 12. Hymeniacidon globularis n in Fourteen new species of demosponges (Porifera) from three coastal fjords in southern British Columbia, Canada
FIGURE 12. Hymeniacidon globularis n. sp. Holotype RBCM 023-00001-001 (A) In-situ. (B) Sponge cross section. C) Cross section closeup of ectosome and the upper choanosome. (D) Subtylostyles.
FIGURE 20. Hymeniacidon fusiformis. A in The Sponges of the Carmel Pinnacles Marine Protected Area
FIGURE 20. Hymeniacidon fusiformis. A: field photo. B: cross-section at sponge surface. C: ectosomal skeleton. D: oxea. All images of holotype.
FIGURE 5. Hymeniacidon torquata Topsent, 1916 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 5. Hymeniacidon torquata Topsent, 1916, spicules: A, styles of MNRJ 20667; B, bases of styles of MNRJ 20667, in detail; C, styles of MNRJ 20689; D, bases of styles of MNRJ 20689, in detail; E, styles of MNRJ 20693; F, bases of styles of specimen MNRJ 20693, in detail. Scale bars: A, C, E = 100 µm; B, D, F = 10 µm.
FIGURE 9 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 9. Clathria (Axosuberites) retamalesi sp. nov., holotype MNRJ 20638. A, extra-axial skeleton in transverse view; B, extra-axial skeleton in detail, with small ectosomal auxiliary styles (ect. aux.), smaller subectosomal auxiliary styles III (subect. aux.), and tracts of principal choanosomal styles reinforced by larger subectosomal auxiliary styles II, (cho. princ.); C, extraaxial skeleton in detail, showing bundles of ectosomal auxiliary styles; D, transverse section showing compressed choanosomal bundles of subectosomal principal styles and subectosomal auxiliary styles; E, detail of the compressed skeleton. Scale bars: A, D = 500 µm; B–C, E = 200 µm.
FIGURE 3. Hymeniacidon torquata Topsent, 1916 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 3. Hymeniacidon torquata Topsent, 1916, specimens (in conservative). A–C, MNRJ 20667; D–F, 20626; G–I, 20649. A, D, G, freshly collected specimens with a pale orange color. B, C, E, F, H, I, ethanol preserved specimens. A, pale orange specimen, white arrow point to a red alga and black arrow point to a polychaete tube; B, E, transverse section showing the cavernous choanosome; C, F, I, surface with several scattered small pores; H, damaged surface exposing cavernous choanosome.
FIGURE 4. Hymeniacidon torquata Topsent, 1916 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 4. Hymeniacidon torquata Topsent, 1916, skeleton: A, transverse section in MNRJ 20667 showing loose choanosomal ascending tracts obscured by the overlaid halichondroid architecture, ending in surface bouquets; B, transverse section in MNRJ 20689 showing ectosomal bouquets; C, same as B, but in MNRJ 20693; D, transverse section in MNRJ 20689 showing loose choanosomal ascending tracts obscured by the overlaid halichondroid architecture; E, same as " D ", but in MNRJ 20693. Scale bars: A–E = 300 µm.
FIGURE 1 in Sponges from Doumer Island, Antarctic Peninsula, with description of new species of Clathria (Axosuberites) Topsent, 1893 and Hymeniacidon Bowerbank, 1858, and a re-description of H. torquata Topsent, 1916
FIGURE 1. Study area at South Bay, Doumer Island. Stars indicate the collection sites of the material analyzed in the field stations (P1, P2, P3, P4, P5, P6, P7, P8 and P9). Scale bars: 100 km (Antarctic Peninsula), 0.5 km (Doumer Island).
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