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80 results for “Clathria”
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 5 in A new Clathria (Demospongiae, Microcionidae) from Peru occurring on rocky substrates as well as epibiontic on Eucidaris thouarsii sea urchins
FIGURE 5. Spicule composition of a red Clathria (Microciona) aculeofila sp. nov. (MNRJ 11449) in SEM. A–C, principal subtylostyles; D–F, details of respectively A–C; G–I, accessory acanthostyles; J, detail of I; K–M auxillary styles and subtylostyles; N–P, details of the base of K–M; Q–R, details of the extremities of L–M; S, toxas; T, isochelae. Scale bars: A–C = 100 ìm; G–I = 20 ìm; J = 5 ìm; K–M = 50 µm; N–R = 10 µm; S = 20 µm; T = 5 µm.
FIGURE 4 in A new Clathria (Demospongiae, Microcionidae) from Peru occurring on rocky substrates as well as epibiontic on Eucidaris thouarsii sea urchins
FIGURE 4. Ground section of a spine of the sea urchin Eucidaris thouarsii covered by Clathria (Microciona) aculeofila sp. nov. MNRJ 13317. Scale bar = 200 µm.
FIGURE 6 in A new Clathria (Demospongiae, Microcionidae) from Peru occurring on rocky substrates as well as epibiontic on Eucidaris thouarsii sea urchins
FIGURE 6. Spicule composition of a yellow Clathria (Microciona) aculeofila sp. nov. (MNRJ 12982) in SEM. A–C, principal subtylostyles; D–E, details of respectively A–B; F–G, accessory acanthostyles; H, detail of G; I–J auxillary styles and subtylostyles; K–N, details of various auxillary styles and subtylostyles; O, toxas; P, isochelae. Scale bars: A–C = 100 ìm; D– E = 10 ìm; F–G = 20 ìm; H = 5 µm; I–J = 50 µm; K–N = 10 µm; O = 20 µm; P = 5 µm.
FIGURE 3 in A new Clathria (Demospongiae, Microcionidae) from Peru occurring on rocky substrates as well as epibiontic on Eucidaris thouarsii sea urchins
FIGURE 3. Transversal fracture of a spine of the sea urchin Eucidaris thouarsii (SEM) showing the structure of the skeleton of Clathria (Microciona) aculeofila sp. nov. MNRJ 13317. 1 = basal layer of spongin, 2 = echinated paucispicular fibres.
FIGURE 1 in A new Clathria (Demospongiae, Microcionidae) from Peru occurring on rocky substrates as well as epibiontic on Eucidaris thouarsii sea urchins
FIGURE 1. Map of Peru with collection localities of Clathria (Microciona) aculeofila sp. nov. and details of the Punta Sal region. 1 = Cancas; 2 = Punta Sal, Punta Sal Balneario I and Punta Sal Balneario II; 3 = Máncora; 4 = El Ñuro; 5 = Lobos de Afuera Islands.
FIGURE 2 in A new Clathria (Demospongiae, Microcionidae) from Peru occurring on rocky substrates as well as epibiontic on Eucidaris thouarsii sea urchins
FIGURE 2. Clathria (Microciona) aculeofila sp. nov. in situ on spines of the sea urchin Eucidaris thouarsii (a, b, c, d) and encrusting rocky substrates (e, f). a, b = CZA 11332, c = CZA 12981, d = CZA 12982, e = CZA 11437, f = CZA 13031. White arrows indicate the sponge; black arrows indicate bare spines or bare tips of the spines. Scale bars: a = 3 cm; b = 2 cm; c = 3 cm; d - f = 2 cm.
FIGURE 5 in Clathria (Clathria) Schmidt, 1862 from Brazil with description of a new species and a review of records (Poecilosclerida: Demospongiae: Porifera)
FIGURE 5. Clathria (Clathria) calypso Boury-Esnault, 1973 (MNHN.LBIM.D.NBE 1035, holotype). A, specimen preserved; B, thick section showing the ectosome and choanosome; C, details of the fibers with echinating spicules. Scale bars: A = 1 cm; B = 500 μm; C = 100 μm.
FIGURE 6 in Clathria (Clathria) Schmidt, 1862 from Brazil with description of a new species and a review of records (Poecilosclerida: Demospongiae: Porifera)
FIGURE 6. Spicule composition of Clathria (Clathria) calypso Boury-Esnault, 1973 (MNHN.LBIM.D.NBE 1035). A, principal styles; B, auxiliary subtylostyles I; C, auxiliary subtylostyles II; D–F, details of respectively A–C; G, accessory acanthostyles; H, toxas I; I, toxas II; J, palmate isochelae. Scale bars: A–B = 100 μm; C = 50 μm; D = 8 μm; E = 3 μm; F = 1 μm; G = 20 μm; H = 150 μm; I = 30 μm; J = 6 μm.
FIGURE 4 in Clathria (Clathria) Schmidt, 1862 from Brazil with description of a new species and a review of records (Poecilosclerida: Demospongiae: Porifera)
FIGURE 4. Spicule composition of Clathria (Clathria) nicoleae sp. nov. (UFPEPOR 208, holotype) in SEM. A–B, principal styles and details of ends; C–D, auxiliary subtylostyles and details of ends; E–F, auxiliary tylostrongyle and details of ends; G– H, accessory acanthostyles and details of end; I, palmate isochelae; J, toxa. Scale bars: A = 20 μm; B = 10 μm; C = 50 μm; D = 2,5 μm; E = 12 μm; F = 2 μm; G = 10 μm; H = 2,5 μm; I = 3,5 μm; J = 10 μm.
FIGURE 3 in Clathria (Clathria) Schmidt, 1862 from Brazil with description of a new species and a review of records (Poecilosclerida: Demospongiae: Porifera)
FIGURE 3. Clathria (Clathria) nicoleae sp. nov. (UFPEPOR 208, holotype). A, preserved specimen; B, oscules on lateral side; C, channels in standard star-like surface; D, thick section showing the ectosome and choanosome; E, detail of thick section showing the thin ectosome with some tylostrongyles tangential (arrows); F, details of the two channels showing echinating spicules. Scale bars: A = 5 cm; B = 1 cm; C = 1,5 cm; D = 200 μm; E = 150 μm; F = 100 μm.
FIGURE 2 in Clathria (Clathria) Schmidt, 1862 from Brazil with description of a new species and a review of records (Poecilosclerida: Demospongiae: Porifera)
FIGURE 2. Clathria (Clathria) nicoleae sp. nov. in situ in northeast Brazil. A–B, specimens in the Paraíba State; C–D, specimens in the Rio Grande do Norte State.
FIGURE 1 in Clathria (Clathria) Schmidt, 1862 from Brazil with description of a new species and a review of records (Poecilosclerida: Demospongiae: Porifera)
FIGURE 1. Location of the collection sites of Clathria (Clathria) nicoleae sp. nov. in the Brazilian coast. 1–2 = Potiguar Basin; 3 = João Pessoa city.
FIGURE 10 in Taxonomy of Clathria (Thalysias) (Demospongiae: Poecilosclerida: Microcionidae) from the Colombian Caribbean, with description of three new species
FIGURE 10. Clathria (Thalysias) minuta. SEM micrographs of spicules of a specimen from Santa Marta. (a) Choanosomal principal style, (b) ectosomal auxiliary subtylostyle (larger choanosomal and subectosomal ones were not found in the SEM preparation), (c) echinating accessory acanthostyles, (d) wing-shaped toxa, (e) palmate chelae.
FIGURE 15 in Taxonomy of Clathria (Thalysias) (Demospongiae: Poecilosclerida: Microcionidae) from the Colombian Caribbean, with description of three new species
FIGURE 15. Clathria (Thalysias) chelosigmoidea n. sp. SEM micrographs of spicules of a specimen from Santa Marta. (a) Choanosomal principal styles, (b) ectosomal auxiliary subtylostyle (the larger choanosomal ones were scarce in the SEM sample), (c) echinating accessory acanthostyles, (d) sigmoid palmate chelae.
FIGURE 6 in Taxonomy of Clathria (Thalysias) (Demospongiae: Poecilosclerida: Microcionidae) from the Colombian Caribbean, with description of three new species
FIGURE 6. Clathria copiosa var. curacaoensis. SEM micrographs of spicules of the holotype (ZMA POR.726). Image courtesy of R.W.M. van Soest and Elly Beglinger (Naturalis Biodiversity Center, Leiden, The Netherlands).
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