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24 results for “Anorthoneis”
FIGURE 143 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURE 143. Relationship tree of the genus Anorthoneis generated using maximum parsimony method (Cladistic analysis). The black circles indicate probable homology changes, and the white circles represent probable homoplasy or ancestrally-derived homology changes. Circle number, top = character number (Table 3); circle number, bottom = character state (Table 3).
FIGURES 112–115 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 112–115. Historical report of Anorthoneis vortex by different authors, LM images. (112–114) A. vortex specimens from Sterrenburg (1987), slide BM 81500, Bergen aan Zee, The Netherlands; (115) A. vortex specimens from Witkowski et al. (2000). Scale bars: Figs 112–114 = 5 μm.
FIGURES 116–121 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 116–121. Anorthoneis vortex specimens from Sterrenburg (1987) cleaned material from Bergen aan Zee, The Netherlands. (116) External view of sternum valve with slightly visible eccentric sternum and imperforated areolae in the asymmetrical hyaline-like area (arrow); (117) Tilted external view (60°) of sternum valve showing the wide convex mantle; (118) Detail of the sternum valve areolae; (119) Internal view of the sternum valve mantle showing smaller poroids present at the end of each stria close to the valve margin (arrow); (120) Internal view of sternum valve; (121) Tilted internal view (60°) of sternum valve showing the thickening of sternum and eccentric central area. Scale bars: Figs 117, 120 = 5 μm; Figs 116, 121 = 2 μm; Figs 118, 119 = 1 μm.
FIGURES 122–129 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 122–129. Anorthoneis vortex specimens from Sterrenburg (1987) cleaned material from Bergen aan Zee, The Netherlands, SEM images. (122) External raphe-sternum valve with asymmetric raphe; (123) Tilted external view (60°) of raphe-sternum valve showing the concave mantle; (124) Internal view of raphe-sternum valve; (125) Tilted external view (60°) of raphe-sternum valve; (126) External coaxial, expanded, pore-like central raphe endings; (127) External expanded, pore-like distal raphe ending terminating in a roundish submarginal hyaline area. Smaller, non-hymenate poroid is present at the end of each biseriate stria close to the valve margin (arrow); (128) Internal, uncinated proximal raphe endings deflected in opposite directions converging on the central nodule; (129) Internal distal raphe ending terminating in a reduced helictoglossa close to the hyaline terminal area. Smaller, not-hymenate poroid is present at the end of each biseriate stria (Arrow). Scale bars: Figs 122, 124, 125 = 5 μm; Fig. 123 = 2 μm; Figs 126–129 = 1 μm.
FIGURES 97–102 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 97–102. Historical reports of Anorthoneis tenuis by different authors. (97) Drawings of sternum and raphe-sternum valves of A. tenuis from Hustedt (1955) (holotype); (98, 99) Micrographs of A. tenuis specimen H65366 from slide ZT2/01, material AM794 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany); (100–102) Micrographs of other specimens of A. tenuis from slide ZT2/01, material AM794 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany), LM images. Scale bars: Figs 101–106 = 2 μm.
FIGURES 88–92 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 88–92. Anorthoneis species. (88 91) Anorthoneis maculata specimens from Tempère & Peragallo (1910), slide 402 "Honolulu, Isles Sandwich. Diatomées du Monde entier (holotype); (92) Anorthoneis minima specimens from Foged (1975). Raphe-sternum and sternum valve, LM micrographs (holotype). Scale bars: 92 = 10 μm; 88–91 = 5 μm.
FIGURES 130–135 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 130–135. Anorthoneis arthus-bertrandii De Stefano & C. Pennesi, sp. nov., SEM images. (130) External view of sternum valve; (131) Detail of sternum valve showing the presence of vestigial perforations in hyaline-like central area; (132). Detail of the sternum valve mantle showing biseriate striae close to the valve margin; (133) Internal view of sternum valve; (134) Detail of the sternum valve (internally) showing the eccentric central area with vestigial perforations; (135) Detail of circular areolae internally occluded by rota-like vela. Figs 130, 133 = 5 μm; Fig. 134 = 2 μm; Figs 131, 132, 135 = 1 μm.
FIGURES 136–142 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 136–142. Anorthoneis arthus-bertrandii De Stefano & Pennesi, sp. nov., SEM images. (136) External raphe-sternum valve with asymmetric raphe branches; (137) Detail of coaxial central raphe endings (externally); (138) Detail of external distal raphe ending terminating in a roundish submarginal hyaline area (externally); (139) Internal view of raphe-sternum valve showing the thickening of sternum and small central nodule; (140) Detail of the internal, uncinated proximal raphe endings converging to the central nodule; (141) Detail of distal raphe ending terminating in a vestigial helictoglossa (internally). (142) Anorthoneis arthus-bertrandii De Stefano & Pennesi, sp. nov. from slide MDS 9 (Holotype), LM images. Scale bars: Fig. 140 = 10 μm; Figs 139, 142 = 5 μm; Fig. 137 = 2 μm; Figs 136, 138, 141 = 1 μm.
FIGURES 68–75 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 68–75. Historical reports of Anorthoneis hyalina by different authors. (68) Raphe-sternum and sternum valve drawings of A. hyalina from Hustedt (1955) (holotype); (69) Sternum valve micrographs of A. hyalina from Witkowski et al. (2000); (70) Micrograph of A. hyalina specimen H65236 from slide ZT1/91 (isolectotype), material AM792 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany); (71) Micrograph of A. hyalina specimen H65075 from slide ZT1/84 (isolectotype) material AM791 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany); (72) Micrograph of A. hyalina specimen H64958 from slide ZT1/79 (lectotype), material AM791 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany); (73) Micrograph of A. hyalina specimen H65365a from slide ZT2/01(Paralectotypes), cleaned material AM794 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany); (74) Micrograph of A. hyalina specimen H65159 from slide ZT1/87 (isolectotype), cleaned material AM791 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany); (75) A. hyalina specimen from cleaned material AM791, Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany). Magnification: Fig. 69: x1500. Scale bars: Figs 70–75 = 10 μm.
FIGURES 63-67 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 63-67. Anorthoneis hummii specimens from Hustedt's cleaned materials AM791, AM792, Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany), SEM images. 63. External view of raphe-sternum valve. (64) Detail of coaxial raphe central endings in external view lying in drop-shaped areas; (65) External view of distal raphe ending terminating in hyaline submarginal area; (66) Tilted external view (60°) of raphe-sternum mantle showing the opened valvocopula with smooth inner margin; (67) Tilted external view (60°) of raphe-sternum valve. Scale bars: Fig. 57 = 10 μm, Figs 62, 63, 67 = 5 μm; Figs 58, 60, 65 = 2 μm; Figs 59, 61, 64, 66 = 1 μm.
FIGURES 81–87 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 81–87. Anorthoneis hyalina specimens from Hustedt's cleaned material AM791, AM794, Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany), SEM images. (81) Raphe-sternum valve in external view; (82) External view of the apically elongated distal raphe ending terminating in a hyaline submarginal area; (83) Detail of coaxial proximal raphe endings in external view; (84) Tilted external view (60°) of raphe-sternum valve; (85) Tilted external view (60°) of raphe-sternum mantle terminating in narrow submarginal area bordered by a thickened rim (arrows). Smaller non-hymenate poroids are present at the end of each biseriate stria (white arrowhead) and ligulate structures are visible on the marginal area (black arrowhead); (86) Raphe-sternum valve in internal view; (87) Detail of the internal surface of raphe-sternum valve showing the biseriate mantle striae. Scale bars: Figs 81, 84, 86 = 10 μm; Fig. 87 = 2 μm; Figs 82, 83, 85 = 1 μm.
FIGURES 93–96 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 93–96. Historical reports of Anorthoneis pulex by different authors. 93–94. A. pulex specimens from Sterrenburg (1987), slide BM 81499, Yerseke, The Netherlands. 95. Teratological valve from Sterrenburg's cleaned material from Yerseke, The Netherlands, SEM image. 96. A. pulex sternum valve from Sterrenburg's cleaned material from Yerseke, The Netherlands, SEM image. Magnification: Fig. 97: x1500. Scale bars: Figs 93–94 = 5 μm; Figs 95, 96 = 2 μm.
FIGURES 103–111 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 103–111. Anorthoneis tenuis specimens from Hustedt's cleaned material AM794, Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany), SEM images. (103) Tilted external view (60°) of sternum valve; (104) Sternum valve in internal view; (105) Detail of external sternum valve mantle showing smaller and transapically elongated areola at the end of each stria; (106) Detail of sternum valve mantle in internal view showing irregular areolae; (107) Tilted internal view (60°) of sternum valve; (108) Detail of coaxial, expanded, pore-like raphe central endings in external view; (109) Tilted external view (30°) of raphe-sternum valve with open valvocopula; (110) Tilted external view (60°) of raphe-sternum valve; (111) Detail of the raphe-sternum valve showing the biseriate mantle striae and a expanded, pore-like distal raphe ending. Scale bars: Fig. 107 = 5 μm; Figs 103, 104, 109, 110 = 2 μm; Figs 105, 106, 108, 111 = 1 μm.
FIGURES 76–80 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 76–80. Anorthoneis hyalina specimens from Hustedt's cleaned material AM791, AM794, Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany), SEM images. (76) External view of sternum valve showing the asymmetrical hyaline central area; (77) Internal view of sternum valve with thickened hyaline central area; (78) Tilted external view (60°) of sternum valve; (79) Detail of sternum valve surface showing imperforated areolae (arrow); (80) Detail of sternum valve mantle in internal view showing the slit-like areolae occluded by vela. Scale bars: Figs 76, 77 = 10 μm; Fig. 78 = 5 μm; Figs 79, 80 = 2 μm.
FIGURES 57–62 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 57–62. Anorthoneis hummii specimens from Hustedt's cleaned materials AM791, AM792, Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany), SEM images. (57) External sternum valve with asymmetrical hyaline central area and small roundish terminal areas (arrow); (58) Detail of sternum valve mantle terminating in a wide hyaline marginal area; (59) Detail of roundish/transapically elongated areolae externally occluded by thick perforated hymenes; (60) Detail of sternum valve mantle; (61) Internal view of areolae occluded by perforated hymens; (62) Internal sternum valve showing sternum and hyaline central area. Scale bars: Fig. 57 = 10 μm; Figs 62, 63 = 5 μm; Figs 58, 60 = 2 μm; Figs 59, 61 = 1 μm.
FIGURES 49–56 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 49–56. Historical reports of Anorthoneis hummii by different authors. (49) Raphe-sternum and sternum valve drawings of A. hummii from Hustedt (1955) (holotype); (50) Raphe-sternum valve micrographs of A. hummii from Witkowski et al. (2000); (51, 52) Micrographs of A. hummii specimen H65158 from slide ZT1/87 (Holotype), material AM791 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany); (53) Micrograph of A. hummii specimen H65433 from slide ZT1/96 (Paralectotype), material AM795 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany); (54, 55) Micrographs of A. hummii specimen H65252 from slide ZT1/92 (isolectotype), material AM792 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany); (56) Micrograph of A. hummii specimen H65217a from slide ZT1/90 (lectotype), material AM792 from Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany). Magnification: Fig. 52: x1500. Scale bars: Figs 51–56 = 10 μm.
FIGURES 42–48 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 42–48. Anorthoneis eurystoma specimens from Hustedt cleaned material AM791, Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany), SEM images. (42) Raphe-sternum valve in external view; (43) Raphe-sternum valve in internal view showing the open valvocopula exhibiting a crenulated inner margin (arrows); (44) Tilted external view (60°) of raphesternum valve. (45) External view of a distal raphe ending terminating in a hyaline submarginal area. (46) Detail of expanded, pore-like, coaxial central raphe endings in external view; (47) Internal view of slightly oppositely deflected, central raphe endings converging on a central nodule; (48) Internal view of a distal raphe ending terminating in a reduced helictoglossa. Scale bars: Figs 42–44 = 5 μm; Figs 45–48 = 2 μm.
FIGURES 38–41 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 38–41. Anorthoneis eurystoma specimens from Hustedt cleaned material AM791, Beaufort, North Carolina, USA (Hustedt Diatom Collection, Bremerhaven, Germany), SEM images. (38) External view of sternum and asymmetrical hyaline central area; (39) Tilted external view (60°) of sternum valve showing slightly evident terminal areas close to the mantle (arrow); (40) Detail of sternum valve surface showing the transapically-elongated areole internally occluded by vela; (41) Internal view of sternum valve with strongly silicified sternum and hyaline central area. Scale bars: Figs 39, 41 = 10 μm; Fig. 38 = 5 μm; Fig. 40 = 2 μm.
FIGURES 23–27 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 23–27. Anorthoneis dulcis specimens from Hein (1991), original material #4138, Withlacoochee River, Fla, U.S.A, ANSP Material Collection, Philadelphia Academy of Natural Sciences, SEM images. (23) External view of sternum valve showing asymmetrical subtriangular central area; (24) Tilted external view (60°) of sternum valve showing the convex external mantle; (25) Internal view of sternum valve; (26) Detail of mantle showing the apically elongated areolae at the end of each stria; (27) Tilted internal view (60°) of sternum valve showing the slight thickening of sternum and central area. Scale bars: Figs 23–24, 29 = 5 μm; Fig. 25 = 2 μm; Fig. 26 = 1 μm.
FIGURES 1–9 in Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.
FIGURES 1–9. Historical reports of Anorthoneis excentrica by different Authors. (1) Raphe-sternum valve drawing of A. excentrica from Donkin (1858) (Holotype); (2) Raphe-sternum valve drawing of A. excentrica from Ralfs in Pritchard (1861); (3) Sternum and raphe-sternum valve drawings of A. excentrica from Peragallo & Peragallo (1897–1908); (4) Sternum and raphe-sternum valve drawings of A. excentrica from Hustedt (1933); (5) Sternum valve of A. excentrica from Hendey (1964); (6) Sternum valve of A. excentrica from Sterrenburg (1988); (7) Sternum and raphe-sternum valve of A. excentrica from Witkowski et al. (2000); (8) Sternum valve of A. excentrica from slide BM 1466, Greville collection, LM image; (9) Raphe-sternum valve of A. excentrica from slide BM 1466, Greville collection, LM image. Magnifications: Fig. 6 = x2000; Fig. 7 = x1500. Scale bars: Figs 8, 9 = 10 μm.
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