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17 results for “Polymastia”
FIG. 1 in Alleged cosmopolitanism in sponges: the example of a common Arctic Polymastia (Porifera, Demospongiae, Hadromerida)
FIG. 1. — Lectotype of Polymastia arctica (Merejkowsky, 1878); A, whole sponge; B, fragment with budding papillae. Abbreviation: b, buds. Scale bars: A, 1 cm; B, 1 mm.
FIG. 4 in Alleged cosmopolitanism in sponges: the example of a common Arctic Polymastia (Porifera, Demospongiae, Hadromerida)
FIG. 4. — Distribution of Polymastia arctica (Merejkowsky, 1878), White Sea: 1, Kandalaksha Bay; 2, Onega Bay; 3, Dvina Bay; Barents Sea: 4, Murman Coast; 5, Chesha Bay.
FIG. 2 in Alleged cosmopolitanism in sponges: the example of a common Arctic Polymastia (Porifera, Demospongiae, Hadromerida)
FIG. 2. — Polymastia arctica (Merejkowsky, 1878); A, longitudinal section of the body and inhalant papilla; B, transversal section of the inhalant papilla; C, transversal section of the exhalant papilla. Abbreviations: b, bud; c, collagenous layer; e, exhalant canal; i, inhalant canal; p, palisade layer; s, subcortical layer of diffuse choanosomal spicules; t, tangential layer; v, vestibule. Scale bars: 1 mm.
FIG. 3 in Alleged cosmopolitanism in sponges: the example of a common Arctic Polymastia (Porifera, Demospongiae, Hadromerida)
FIG. 3. — Polymastia arctica (Merejkowsky, 1878), spicules. Abbreviations: is, intermediate subtylostyles; ps, principal subtylostyles; t, small palisade tylostyles. Scale bar: 100 µm.
FIG. 1 in Redescription of the type species of the genus Polymastia Bowerbank, 1864 (Porifera, Demospongiae, Hadromerida)
FIG. 1. — Polymastia mamillaris (Müller, 1806); drawing of a transversal section of the main body. Abbreviations: p, palisade of ectosomal tylostyles; c, middle collagenous layer; l, tangential layer of intermediary tylostyles; i, free intermediary spicules; e, groups of ectosomal spicules. Scale bar: 170 µm.
FIG. 3 in Redescription of the type species of the genus Polymastia Bowerbank, 1864 (Porifera, Demospongiae, Hadromerida)
FIG. 3. — Polymastia penicillus Montagu, 1818; drawing of a transversal section of the main body. Abbreviations: p, palisade of ectosomal tylostyles; l, tangential layer of intermediary tylostyles; t, longitudinal tracts of principal tylostyles. Scale bar: 170 µm.
FIG. 2. — A-C in Redescription of the type species of the genus Polymastia Bowerbank, 1864 (Porifera, Demospongiae, Hadromerida)
FIG. 2. — A-C, Polymastia penicillus Montagu, 1818; A, ectosomal tylostyles; B, intermediary tylostyles; C, principal tylostyles; D-F, Polymastia mamillaris (Müller, 1806); D, ectosomal tylostyles; E, intermediary tylostyles; F, principal tylostyles. Scale bar: 17 µm.
Fig. 9. Polymastia fistula n in Ten new species of families Suberitidae and Polymastiidae (Demospongia: Heteroscleromorpha) from Korea
Fig. 9. Polymastia fistula n. sp. A, B, large and small spicules; C, surface between papillae under the dissecting microscope; D, bundle of large spicules underside of sponge the dissecting microscope. Scale bars: A = 100 μm, B = 50 μm.
Fig. 8. Polymastia fistula n in Ten new species of families Suberitidae and Polymastiidae (Demospongia: Heteroscleromorpha) from Korea
Fig. 8. Polymastia fistula n. sp. A, external morphology; B, underside of sponge; C, subsurface skeletal structure; D, skeletal structure of fistulae (large spicules inside, small tylostylesat the surface); E, tylostyles; F, centrotylote microxeas; G, tylostyles; H, large tylostyles and centrotylote microxeas. Scale bars: A = 1.4 cm, B = 1 cm, C- E = 100 μm, F, G = 50 μm, H = 300 μm.
FIGURE 6. Polymastia zitteli. A–specimen SMF 10557. B in Polymastiidae and Suberitidae (Porifera: Demospongiae: Hadromerida) of the deep Weddell Sea, Antarctic *
FIGURE 6. Polymastia zitteli. A–specimen SMF 10557. B–histological section of idem, general view. C, D–the same as B, details of cortex. E–surface view of detached cortex of idem. F–principal and intermediary spicules. G–small spicules. Scale bars: A 10 mm; B 1 mm; C–E 0.2 mm; F–G 0.1 mm.
FIGURE 9. Polymastia invaginata Kirkpatrick, 1907. A in Deep Water Polymastiidae (Porifera, Polymastiida) from the South West Pacific
FIGURE 9. Polymastia invaginata Kirkpatrick, 1907. A. QM G315026 underwater. B. QM G311143 underwater. C. QM G315026 fixed. D. Cross section of QM G315026. E. QM G335958 fixed. F. QM G311143 fixed. G. Cross section of QM G311143. H. Composite section of QM G315026. I. section of QM G315026 showing the cortical palisade of tylostyles supported by the choanosomal tracts of styles. J. Stellate formations of tylostyles in the choanosome between the tracts of styles. K. Choanosomal styles. L. Tylostyles.
FIGURE 23. Polymastia invaginata Kirkpatrick, 1907 in Demosponges from the sublittoral and shallow-circalittoral (<24m depth) Antarctic Peninsula with a description of four new species and notes on in situ identification characteristics
FIGURE 23. Polymastia invaginata Kirkpatrick, 1907. BELUM.Mc2015.596. A. In situ appearance. B. Ectosomal tylostyles, scale bar 200 µm. C. Choanosomal styles, scale bar 1000 µm. D. Skeleton, scale bar 1000 µm.
FIGURE 9. Polymastia pacifica Lambe, 1893b. A in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species
FIGURE 9. Polymastia pacifica Lambe, 1893b. A, large living specimen, scale bar 1 cm; B, cross section showing fibre tracts extending to ectosome, scale bar 1 mm; C, palisade of small tylostyles in ectosome, scale bar 50 Μm; D, head of style I, scale bar 50 µm; E, subtylostyle II, scale bar 500 µm; F, head of subtylostyle II, scale bar 50 µm; G, tylostyle I, scale bar 200 Μm; H, head of tylostyle I, scale bar 50 Μm; I, tylostyle II, scale bar 30 Μm; J, head of tylostyle II, scale bar 10 Μm.
FIGURE 7. Polymastia kurilensis Koltun, 1962. A in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species
FIGURE 7. Polymastia kurilensis Koltun, 1962. A, thick cross section, scale bar 10 mm; B, long and short spicules, scale bar 100 µm; C, head of subtylostyle, scale bar 10 µm; D, barbed end of thin onychaete-like spicule, scale bar 10 µm.
FIGURE 10. Polymastia piscesae n in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species
FIGURE 10. Polymastia piscesae n. sp. A, large living specimen, scale bar approx. 1 cm; B, cross section showing fibre tracts extending to ectosome, scale bar 3 mm; C, palisade of small tylostyles in ectosome, scale bar 300 Μm; D, style I, scale bar 500 Μm; E, head of style I, scale bar 50 µm; F, subtylostyle II, scale bar 100 µm; G, tylostyle II, scale bar 50 µm; H, fusiform tylostyle III, scale bar 200 Μm; I, head of tylostyle III, scale bar 10 µm.
Fig. 11. Polymastia viridis n in Ten new species of families Suberitidae and Polymastiidae (Demospongia: Heteroscleromorpha) from Korea
Fig. 11. Polymastia viridis n. sp. A, external morphology; B, spicules; C, D, brush-like spicules at the ectodome; E, head of tylostyles; F, sharp end of spicules. Scale bars: A = 1 cm, B = 50 μm, C-F = 25 μm.
Fig. 10. Polymastia sasuensis n in Ten new species of families Suberitidae and Polymastiidae (Demospongia: Heteroscleromorpha) from Korea
Fig. 10. Polymastia sasuensis n. sp. A, external morphology; B, underside of sponge; C, spicules with ectoderm; D, hair-like surface spicules under the dissecting microscope; E, F, tylostyles; G, bundle of tylostyles; H, tylostyles with spongin. Scale bars: A = 2 cm, B = 1 cm, C, F- H = 50 μm, E = 100 μm.
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