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1,069 results for “bryozoans”
Figure 2 in The bryozoan genus Conopeum (Electridae) in New Zealand, with description of a new species and discussion of the morphological and genetic characters of Conopeum seurati (Canu, 1928)
Figure 2. (a–e). Conopeum antipodum n. sp.: (a, b), NIWA 98813, Te Whanga Lagoon, Chatham Island; (c, e), NIWA 16174, Kaipara Harbour; (d), NIWA 98824, Waitemata Harbour, Auckland, New Zealand. (a), Inner face of operculum showing the form of the marginal sclerite. (b), Two kenozooids flanking a repaired autozooid. (c), Lateral view of an autozooid with mural septula and stumpy spine bases on each side midlaterally. Arrows indicate raised distal zooid rims in profile. (d), Distal end on an autozooid showing a dense pore cluster in the transverse wall and (arrowed), inner (left) and outer (right) multiporous mural septula. (e), Close-up of the interior face of a multiporous mural septulum. Scalebars: (a, d), 50 μm; (b), 200 μm; (c), 100 μm; (e), 20 μm.
FIGURE 1. A–D in New names for some bryozoan homonyms
FIGURE 1. A–D. Reussinella arctica (Osburn, 1950), Pacific Institute of Bio-Organic Chemistry, Vladivostock (1/ 5614), off Bering Island, Russia (ST. 49, 55°25'5"N, 165°38'9"E, 119 m, coll. 24 August 1991 by A.V. Smirnov), Recent. A, Part of a linear colony branch; SEM scalebar 588 μm. B, Group of zooids with opercula and cuticularised epithelium retained; SEM scale bar 137 μm. C, Group of zooids, with two incomplete and one intact ovicell; SEM scalebar 182 μm. D, Zooid with marginal pores (presumably opesiular) and large distal pore-chamber; SEM scalebar 100 μm. E, F. Leiosellina rostrifera (Canu & Bassler, 1917), holotype (USNM 62597), SE of Bladen Springs, Alabama, Vicksburgian (Rupelian, Oligocene). E, Part of a branch; SEM scalebar 667 μm. F, Close-up of same specimen showing distribution of avicularia; SEM scale bar 179 μm.
FIGURES 29–33. Euginoma vermiformis Jullien, 1882 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 29–33. Euginoma vermiformis Jullien, 1882 (MNHN 100, lectotype). 29, A young colony; 30, dorsal side of a branch; 31, tip of a branch showing the rudiments of four autozooids; 32, ovicell; 33, proximal extremity of a branch with a rhizoid-bearing autozooid.
FIGURES 42–45. Jubella enucleata Jullien, 1882 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 42–45. Jubella enucleata Jullien, 1882 (MNHN 2634, lectotype). 42, Autozooid and a lateral gonozooid; 43, opesia with operculum; 44, gonozooid with operculum; 45, gonozooid without frontal membrane.
FIGURES 25–28. Setosella folini Jullien, 1882 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 25–28. Setosella folini Jullien, 1882 (MNHN 15487). 25, A colony showing processes of regeneration (left); 26, two autozooids showing the opesiulae; 27, first zooid and two autozooids; 28, calcareous layer enclosing the upper part of the external septulum.
FIGURES 12–15 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 12–15. Notoplites marsupiatus (Jullien, 1882) (MNHN 2817, lectotype). 12, Detail of a branch; 13, dorsal side of a branch showing a prominent small pore where a rhizoid is produced; 14, an autozooid with the two types of avicularia; 15, ovicelled zooid.
FIGURES 21–24. Setosella folini Jullien, 1882 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 21–24. Setosella folini Jullien, 1882 (MNHN 1043, lectotype). 21, A colony; 22, basal side of the autozooids; 23, calcareous layer enclosing the upper part of the external septulum; 24, first zooid partially covered by an autozooid.
FIGURES 37–41. Jubella enucleata Jullien, 1882. 37 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 37–41. Jubella enucleata Jullien, 1882. 37, Detail of a colony (MNHN 2634, lectotype); 38, jointed branching and pores producing rhizoids (MNHN 2634, lectotype); 39, uniporous septula (MNHN 2634, lectotype); 40, distal avicularium (MNHN 6973); 41, ancestrula (MNHN 2634, lectotype).
FIGURES 16–20 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 16–20. Notoplites clausus (Busk, 1884) (NHMUK 1887.12.9.83, lectotype). 16, Detail of the colony; 17, dichotomy; 18, an autozooid; 19, basal avicularium; 20, ovicell.
FIGURES 7–11 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 7–11. Notoplites evocatus (Jullien, 1882). 7, Growing tip of the colony (MNHN 18323); 8, a dichotomy (MNHN 2193, lectotype); 9, a colony showing rhizoids (MNHN 18323); 10, an autozooid (MNHN 2193, lectotype); 11, autozooid showing the two types of avicularia (MNHN 18323).
FIGURES 46–49. Jubella enucleata Jullien, 1882. 46 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 46–49. Jubella enucleata Jullien, 1882. 46, Dichotomy in a branch with three zooidal series (MNHN 2634, lectotype); 47, dichotomy in a branch with four zooidal series (MNHN 6973); 48, lateral branching (MNHN 2634, lectotype); 49, a branch budded from a calcified rhizoid (MNHN 2634, lectotype).
FIGURES 1–6 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 1–6. Canda ligata (Jullien, 1882) comb. nov. 1, Jointed dichotomy, showing a rhizoidal connexion between the branches (MNHN 7174); 2, unjointed dichotomy, showing a rhizoidal connexion between the branches (NHMUK 1899.7.1.883, lectotype); 3, unjointed dichotomy showing two vibracula distal to the central zooid (MNHN 7174); 4, dorsal side of a branch with vibracula (MNHN 7174); 5, an autozooid with scutum (MNHN 7174); 6, two ovicells (MNHN 7174).
FIGURES 34–36. Euginoma vermiformis Jullien, 1882. 34 in Redescription of some bryozoan species originally described by J. Jullien from Iberian waters
FIGURES 34–36. Euginoma vermiformis Jullien, 1882. 34, Ovicelled zooid with two distolateral pores and even rim (MNHN 15493); 35, ovicelled zooid with pores nearly closed by calcification (MNHN 8387); 36, ovicelled zooid without pores (MNHN 15487).
FIGURE 4. Tennysonia stellata Busk, 1867, colony morphotypes with A in Phylogenetic position and systematics of the bryozoan Tennysonia: further evidence for convergence and plasticity in skeletal morphology among cyclostome bryozoans
FIGURE 4. Tennysonia stellata Busk, 1867, colony morphotypes with A, narrow branches, (SAM A28765) and B, broad branches (SAM A28766). RIY Bank, Port Elizabeth. Scale bars 10 mm.
FIGURE 1. Tennysonia stellata Busk, 1867 in Phylogenetic position and systematics of the bryozoan Tennysonia: further evidence for convergence and plasticity in skeletal morphology among cyclostome bryozoans
FIGURE 1. Tennysonia stellata Busk, 1867, photographs of fragments of bleached colonies. A, colony with relatively narrow, bifurcating and anastomosing branches, NHMUK 72.8.6.5, Natal; B, fragment of specimen figured by Busk (1875, pl. 31, fig. 6), NHMUK 75.5.29.63, Natal; C, flabellate colony morphotype with delayed separation of bifurcating branches, NHMUK 2003.10.27.13, Groot Bank, Plettenberg Bay. Scale bars: A, C: 5 mm; B: 1 mm.
FIGURE 3. Tennysonia stellata Busk, 1867, scanning electron micrographs showing skeletal morphology. A–C, SAM A28766 in Phylogenetic position and systematics of the bryozoan Tennysonia: further evidence for convergence and plasticity in skeletal morphology among cyclostome bryozoans
FIGURE 3. Tennysonia stellata Busk, 1867, scanning electron micrographs showing skeletal morphology. A–C, SAM A28766, RIY Bank, Port Elizabeth. A, transverse series of autozooidal apertures separated by smaller kenozooidal apertures on left frontolateral branch surface with exterior wall of branch dorsal surface visible in lower left; B, detail of apertures showing spines; C, spine developed at triple junction between three interzooidal walls which have an ultrastructural fabric of transverse fibres (right). D, E, SAM A28765, RIY Bank, Port Elizabeth. D, transition from free-walled (left) to fixed-walled organization (right); E, enlargement showing sheet-like exterior wall (arrowed) covering kenozooidal apertures. F, NHMUK 2003.10.27.7, Groot Bank, Plettenberg Bay, rows of autozooidal apertures separated by exterior wall calcification in fixed-walled branch. G, H, NHMUK 2003.10.27.13, Groot Bank, Plettenberg Bay. G, development of exterior wall calcification, at varying levels relative to vertical interzooidal walls, over kenozooids and most of the autozooids (apart from 5 apertures which remain open); H, lobes of exterior wall calcification extending between autozooidal series. I–L. NHMUK 34.10.20.4, Port Elizabeth. I, apertures closed by exterior wall calcification, one occluded autozooid having a small central dimple; note apertural spines standing up above level of exterior walls (top right); J, gonozooid with broken brood chamber roof; K, lobate brood chamber roof (left) with denser pseudopores than exterior walls covering kenozooids (lower right); L, detail of pseudopores from brood chamber roof, some partly closed by spines. Scale bars: A, D, G, H: 500 µm; B, E: 100 µm; C, L: 20 µm; F, I, K: 200 µm; J: 1 mm.
FIGURE 2. Tennysonia stellata Busk, 1867 in Phylogenetic position and systematics of the bryozoan Tennysonia: further evidence for convergence and plasticity in skeletal morphology among cyclostome bryozoans
FIGURE 2. Tennysonia stellata Busk, 1867, scanning electron micrographs of distal branches showing variations in skeletal organization. A, branch comprising entirely free-walled zooids, SAM A28766, RIY Banks, Port Elizabeth; B, branch with freewalled organization distally but becoming fixed-walled at level of arrow by development of calcified exterior over the kenozooidal apertures, SAM A28765, RIY Bank, Port Elizabeth; C, branch comprising entirely fixed-walled zooids, NHMUK 2003.10.27.7, Groot Bank, Plettenberg Bay. Scale bars: A, B: 1 mm; C: 500 µm.
FIGURE 5 in Phylogenetic position and systematics of the bryozoan Tennysonia: further evidence for convergence and plasticity in skeletal morphology among cyclostome bryozoans
FIGURE 5. Combined ssrDNA and lsrDNA molecular tree showing the phylogenetic position of Tennysonia stellata (narrow- and broad-branched morphs) within the cyclostome bryozoans. Traditional, morphologically based suborders are given on the right.
FIGURES 39−44 in Pyrisinellidae, a new family of anascan cheilostome bryozoans
FIGURES 39−44. Megapora ringens (Busk, 1856), NHML 1911.10.1.631, Recent, Porcupine Bight. 39. view of several autozooids and kenozooids, scale bar = 200 µm; 40. group of autozooids showing a closure plate and lateral, distolateral and distal pore windows, scale bar = 200 µm; 41. detail of the strongly trifoliate orifice with six oral spine bases and inner view of a broken ovicell with associated distal kenozooid, scale bar = 100 µm; 42. zooid and kenozooid at the colony growing edge, scale bar = 100 µm; 43. early astogeny, scale bar = 200 µm; 44. close-up of ancestrula, scale bar = 20 µm.
FIGURES 23−26 in Pyrisinellidae, a new family of anascan cheilostome bryozoans
FIGURES 23−26. Setosinella orbiculata (Canu & Bassler, 1920) n. comb., USNM 63932, holotype, Eocene, Priabonian, Ocala Limestone, Bainbridge, Georgia, USA. 23. view of part of the colony with putative ancestrula (bottom centre), scale bar = 200 µm; 24. part of the colony showing distal pore windows at the colony growing edge, scale bar = 200 µm; 25. close-up of two autozooids and interzooidal avicularium; autozooid on right shows possible pores in the cryptocyst obscured by epitaxial cement; scale bar = 100 µm; 26. close-up of an ovicellate autozooid, scale bar = 100 µm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.