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1,069 results for “bryozoans”
FIGURE 16. Plumatella paltensis n in Phylactolaemate bryozoans at the Zoological Survey of India and a taxonomic key to Indian Phylactolaemata
FIGURE 16. Plumatella paltensis n. sp. (a) Statoblasts from P1198 shown with light microscopy, from top to bottom: floatoblast dorsal valve, floatoblast ventral valve, sessoblast frontal valve; (b) SEM micrograph of floatoblasts from ZEV 4800, dorsal on left, ventral on right, scale bar = 100 µm; (c) SEM view of sessoblast from ZEV 4800 with magnified image on the right. Scale bars for all images = 100 µm.
FIGURE 11 in Phylactolaemate bryozoans at the Zoological Survey of India and a taxonomic key to Indian Phylactolaemata
FIGURE 11. Stolella indica, holotype (now Rumarcanella indica). (a) Floatoblast valves from ZEV3482/7, scale bar = 100 µm; (b) SEM image showing hypertubercles on a portion of the floatoblast dorsal fenestra, scale bar = 25 µm.
FIGURE 2 in Phylactolaemate bryozoans at the Zoological Survey of India and a taxonomic key to Indian Phylactolaemata
FIGURE 2. Floatoblast valves of Hyalinella indica, now identified as Hyalinella lendenfeldi. (a) Valves from the lectotype, ZEV/7 6750; (b) Floatoblast of confirmed H. lendenfeldi from Thailand showing unique concave dorsal valve. Scale bars = 100 µm.
FIGURE 10 in Phylactolaemate bryozoans at the Zoological Survey of India and a taxonomic key to Indian Phylactolaemata
FIGURE 10. Stolonate growth in Plumatella vaihiriae from Silver Lake, Cowlitz County, Washington, USA. The species is known for its normally robust, often bushy colonies. Photo has been digitally enhanced to increase contrast. Scale bar = 3 mm.
FIGURES 37–40. Microeciella argentina n in Fouling bryozoans in Argentine harbours (Southwest Atlantic): new records and the description of a new species
FIGURES 37–40. Microeciella argentina n. sp.; 37, general aspect (Holotype, MACN-In 43885). The likely location of the overgrown ancestrula is marked with an asterisk; 38, colony margin and developing gonozooid (Paratype, MACN-In 43886); 39, close-up of gonozooid (Holotype, MACN-In 43885); 40, ancestrula and early astogeny (Paratype, MACN-In 43886). Scale bars. 37: 1000 µm; 38–40: 200 µm.
FIGURES 24–27. FIGURES 24–27 in Fouling bryozoans in Argentine harbours (Southwest Atlantic): new records and the description of a new species
FIGURES 24–27. FIGURES 24–27. Hippothoa divaricata; 24, zooeciule (arrowhead) (MACN-In 43873). 25, autozooid (MACN-In 43878); 26, ovicelled zooid (MACN-In 43878); 27, ancestrula and first zooid (MACN-In 43873). FIGURE 28. Fenestrulina delicia, ancestrula and early astogeny (MACN-In 43879). FIGURE 29. Cryptosula pallasiana, general aspect (MACN-In 43880). Scale bars. 24–27: 100 µm; 28: 200 µm; 29: 400 µm.
FIGURES 18–23. FIGURES 18–20 in Fouling bryozoans in Argentine harbours (Southwest Atlantic): new records and the description of a new species
FIGURES 18–23. FIGURES 18–20. Bicellariella edentata (MACN-In 32310); 18, general aspect; 19, branch bifurcation and ovicelled zooid; 20, close-up of avicularium. FIGURES 21-23. Exochella moyanoi (MACN-In 43877); 21, general aspect; 22, growing margin, showing ovicells in different stages of development; 23, close-up of peristomes and avicularia. Scale bars. 18, 21, 22: 200 µm; 19, 23: 100 µm; 20: 20 µm.
FIGURES 2–5. FIGURE 2 in Fouling bryozoans in Argentine harbours (Southwest Atlantic): new records and the description of a new species
FIGURES 2–5. FIGURE 2. Arachnidium fibrosum (MACN-In 43869), zooids and stolons. FIGURES 3–5. Buskia socialis (MACN-In 35765); 3, general aspect; 4–5, close-up of branches and zooids. Scale bars. 2, 4, 5: 200 µm; 3: 1000 µm.
FIGURES 30–36. FIGURES 30–32 in Fouling bryozoans in Argentine harbours (Southwest Atlantic): new records and the description of a new species
FIGURES 30–36. FIGURES 30–32. Smittoidea spinigera (MACN-In 43883); 30, general aspect; 31, ovicelled zooid; 32, close-up of primary orifice and suboral avicularium. FIGURES 33–36. Stephanollona boreopacifica (MACN-In 43884); 33, growing margin; 34, three zooids with oral spines; 35, ovicells and smaller oval avicularia; 36, close-up of larger triangular avicularia. Scale bars. 30, 33, 35, 36: 200 µm; 31, 34: 100 µm; 32: 50 µm.
FIGURES 6–11. FIGURES 6–8 in Fouling bryozoans in Argentine harbours (Southwest Atlantic): new records and the description of a new species
FIGURES 6–11. FIGURES 6–8. Anguinella palmata (MACN-In 43872); 6, general aspect; 7–8, close-up of branches and zooids. FIGURES 9–11. Aetea cultrata (MACN-In 43873); 9, general aspect of zooids, stolons and zoeciules (arrowheads); 10, close-up of zoeciules (arrowheads); 11, close-up of one zooid. Scale bars. 6: 1000 µm; 7–9: 200 µm; 10, 11: 100 µm.
FIGURES 12–17. FIGURES 12–14 in Fouling bryozoans in Argentine harbours (Southwest Atlantic): new records and the description of a new species
FIGURES 12–17. FIGURES 12–14. Callopora dumerilii (MACN-In 43874); 12, general aspect; 13, ovicelled zooids; 14, detail of zooid and avicularium. FIGURE 15. Bugula neritina, general aspect (MACN-In 43875). FIGURE 16. Bugulina flabellata, general aspect (MACN-In 43876). FIGURE 17. Bicellariella edentata, general aspect (MACN-In 32310). Scale bars. 12, 15, 17: 200 µm; 13, 14: 100 µm; 16: 300 µm.
FIGURE 1 in Fouling bryozoans in Argentine harbours (Southwest Atlantic): new records and the description of a new species
FIGURE 1. Map of the study area. Hollow squares: harbours sampled in this study. Hollow circles: fossil localities. Solid circles: other localities mentioned in the text.
FIGURE 2. Chaperia atypica n in Epibiotic association of encrusting cheilostome bryozoans on shells of an invasive mussel from rocky shores of South Africa, with the description of a new aviculiferous species of Chaperia
FIGURE 2. Chaperia atypica n. sp. A–C. SAMC-A094525. A. General view of the colony. B. Group of zooids, showing pore-chamber windows and spines. C. Close-up of the orifice. D. Paratype, SAMC-A094513. Group of zooids with arrows indicating twinned and single interzooidal avicularia. E, F. Holotype, SAMC-A094514. E. Group of ovicelled zooids with arrows indicating vestigial ooecia. F. Close-up of the vestigial ooecia with an arrow indicating the ooecial pore. Scale bars: A = 1 mm; B = 0.4 mm; C = 0.1 mm; D, E = 0.4 mm; F = 0.2 mm.
FIGURE 1 in Epibiotic association of encrusting cheilostome bryozoans on shells of an invasive mussel from rocky shores of South Africa, with the description of a new aviculiferous species of Chaperia
FIGURE 1. Map showing the location of 15 intertidal rocky-shore sites along the south–southeast coast of South Africa where epibiotic bryozoans were sampled on live shells of the mussel Mytilus galloprovincialis.
FIGURE 3. A–C. Celleporella hyalina SAMC-A094510. A in Epibiotic association of encrusting cheilostome bryozoans on shells of an invasive mussel from rocky shores of South Africa, with the description of a new aviculiferous species of Chaperia
FIGURE 3. A–C. Celleporella hyalina SAMC-A094510. A. General view of the colony. B. Single ovicelled zooid. C. Group of ovicelled zooids and a male dwarf zooid. D–F. Hippomonavella sp. SAMC-A094529. D. Group of zooids. E. Group of zooids, some with developing ovicells. F. Close-up of the orifice, showing condyles and suboral avicularium. Scale bars: A = 1 mm; B, C = 0.2 mm; D = 1 mm; E = 0.4 mm; F = 0.1 mm.
FIGURE 6. Ramose trepostome bryozoans from the Khrevitsa Formation. A–C in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 6. Ramose trepostome bryozoans from the Khrevitsa Formation. A–C. CNIGR museum №2/13403, Homotrypa sp. A. Longitudinal section. B. Longitudinal section showing diaphragms in mesozooecia (arrow). C. Tangential section showing mesozooecia (arrow). D, E CNIGR museum №3/13403, Stigmatella cf. claviformis (Ulrich, 1893). D. Longitudinal section. E. Longitudinal section showing acanthostyles (arrow). F, G. CNIGR museum №8/13403, Hallopora gracilens Bassler, 1927. F. Transverse section. G. Longitudinal section showing abundant diaphragms in mesozooecia (arrow). H. CNIGR museum №9/13403, Hallopora gracilens, tangential section showing mesozooecia (arrow).
FIGURE 1 in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 1. Sketch map of the Baltic-Ladoga Klint. A. Geological map (modified after Sokolova 1971), insert is shown with a dashed rectangle. B. Detailed map of the upper course of the Khrevitsa River with the bryozoan-bearing locality (arrow).
FIGURE 2 in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 2. The composite scheme of the Upper Ordovician in the Leningrad region, including strata eroded before the Devonian (biozones after Suyarkova & Koren' 2009; age dates after Gradstein et al. 2020)
FIGURE 7. Massive trepostome bryozoans from the Khrevitsa Formation. A in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 7. Massive trepostome bryozoans from the Khrevitsa Formation. A. CNIGR museum №5/13403, Diplotrypa abnormis (Modzalevskaya, 1953), colony exterior on basal side, arrow shows a crinoid segment on which a colony started to grow. B–E. CNIGR museum №4/13403, Diplotrypa abnormis. B. View on basal side with first point of growing (arrow). C. Longitudinal section showing diaphragms in autozooecia (DiA) and mesozooecia (DiM). D. Tangential section. E. Longitudinal section of colony showing a radial budding. F–H. CNIGR museum №7/13403, Monotrypa jewensis Bassler, 1911. F. Longitudinal section. G. Tangential section. H. Longitudinal section.
FIGURE 5. Trepostome and cryptostome bryozoans from the Khrevitsa Formation. A–C in Morphological features of Late Ordovician (Sandbian) bryozoans from the basin of Khrevitsa River (north-western Russia) and description of a new species of the genus Prophyllodictya Gorjunova, 1987
FIGURE 5. Trepostome and cryptostome bryozoans from the Khrevitsa Formation. A–C. CNIGR museum №11/13403, Amplexopora sp. A. Branch colony exterior (micro-CT). B. Longitudinal section showing diaphragms (Di) and cystiphragms (Cy). C. Tangential section showing acanthostyles on the ridges (arrow). D–G. CNIGR museum №1/13403, Nematotrypa robusta (Spjeldnaes, 1984). D. Tangential section showing abundant tektitozooecia (arrow). E. Longitudinal section showing hemiphragms (arrow). F. Tangential section showing paurostyles (Pa) and acanthostyles (Ac). G. Transverse section.
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OpenNeuro
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