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91 results for “Scalibregmatidae”
FIGURE 2. Axiokebuita minuta from Trondheim. A in On the phylogenetic relationships of Axiokebuita, Travisia and Scalibregmatidae (Polychaeta)
FIGURE 2. Axiokebuita minuta from Trondheim. A. Anterior end, anteroventral view. The spherical structures may be commensal ciliates. B. Median parapodia, lateral view. C. Posterior end, ventral view. D. Pygidial pad with adhesive papillae, ventral view. Scale lines A 150 µm, B 100 µm, C 300 µm, D 30 µm.
FIGURE 1 in On the phylogenetic relationships of Axiokebuita, Travisia and Scalibregmatidae (Polychaeta)
FIGURE 1. Dorsal view of live, relaxed specimen from Trondheim. Exact scale unknown, but the specimen was about 5 mm long.
FIGURE 5 in New polychaete species collected during the expeditions ANDEEP I, II, and III to the deep Atlantic sector of the Southern Ocean in the austral summers 2002 and 2005 — Ampharetidae, Opheliidae, and Scalibregmatidae
FIGURE 5. Pseudoscalibregma papilia sp. nov. A. entire animal, B. anterior segments, C. posterior parapodium, D. furcate chaetae, E. pygidium.
FIGURE 3. A–B in New polychaete species collected during the expeditions ANDEEP I, II, and III to the deep Atlantic sector of the Southern Ocean in the austral summers 2002 and 2005 — Ampharetidae, Opheliidae, and Scalibregmatidae
FIGURE 3. A–B Ammotrypanella cirrosa sp. nov. A. entire animal, B. posterior segments; C–E. Ammotrypanella arctica McIntosh 1879 C. anterior segments dorsal view, D. anterior segments lateral view, E. posterior segments, F–G Ammotrypanella princessa sp. nov. F. posterior segments, G. anterior segments.
FIGURE 4. A–B in New polychaete species collected during the expeditions ANDEEP I, II, and III to the deep Atlantic sector of the Southern Ocean in the austral summers 2002 and 2005 — Ampharetidae, Opheliidae, and Scalibregmatidae
FIGURE 4. A–B Ammotrypanella mcintoshi sp. nov. A. anterior segments, B. posterior segments; C–D. Ophelina robusta sp. nov. C. anterior segments, D. posterior segments; E–F. Ophelina ammotrypanella sp. nov. E. anterior segments, F. posterior segments.
FIGURE 1 in New polychaete species collected during the expeditions ANDEEP I, II, and III to the deep Atlantic sector of the Southern Ocean in the austral summers 2002 and 2005 — Ampharetidae, Opheliidae, and Scalibregmatidae
FIGURE 1. Epibenthic sledge stations of the expeditions ANDEEP I–III, grey ANDEEP I/II, black ANDEEP III (Schüller & Ebbe 2007).
FIGURE 7 in Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp.
FIGURE 7. Present study records of Pseudoscalibregma parvum (A), Scalibregma inflatum (B), and Scalibregma hanseni n. sp. (C) from deep areas of the Nordic Seas.
FIGURE 3. Pseudoscalibregma parvum. A. Chaetiger 1 in Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp.
FIGURE 3. Pseudoscalibregma parvum. A. Chaetiger 1, notopodium, anterior view, with small bifurcate spines in front row of chaetae. B. Close up of A, showing bifurcate spines. C. Chaetiger 1, notopodium, anterior view, with furcate chaetae. D. Chaetiger 1 neuropodium anterior view. E. Chaetiger 3, neuropodium, anterior view. F. Chaetiger 3, neuropodium, furcate chaetae in front row. G. Posterior chaetiger (fourth from pygidium), ventral view. H. Light microscope photo, phase contrast, of furcate chaetae from dorsal part of notopodium, chaetiger 9. A–B, D–H specimen from close to type locality, Sta. OL-11; C specimen from west of the Bear Island, Sta. R405-59, RP. Scale bars: A, C–G: 10 µm, H: 50 µm.
FIGURE 2. Pseudoscalibregma parvum. A. Habitus SEM photo, dorsal view. B. Habitus SEM photo, ventral view. C. Prostomium dorsal view. D. Anterior end with everted proboscis. E in Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp.
FIGURE 2. Pseudoscalibregma parvum. A. Habitus SEM photo, dorsal view. B. Habitus SEM photo, ventral view. C. Prostomium dorsal view. D. Anterior end with everted proboscis. E. Ventral view of pygidium. F. Chaetiger 1, right parapodium, anterior view. G. Chaetigers 13–16, dorsal view. H. Chaetigers 21–23, posterior view, showing neuropodial lobe and ventral cirri, left side. A–C, E–G specimen from close to type locality, Sta. OL-12, D, H specimens from west of the Bear Island, Sta. R405-59B, RP. Scale bars: A–B: 1 mm, C–H: 200 µm.
FIGURE 1. Pseudoscalibregma parvum. A in Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp.
FIGURE 1. Pseudoscalibregma parvum. A. Complete specimen, dorso-lateral view. B. Photo of lectotype, with proboscis everted. C. Left parapodium from chaetiger 9, posterior view. D. Left parapodium from chaetiger 20, posterior view. B from ZMBN 94015. A, C–D Specimen from close to type locality Sta. OL-11. Scale bars: A–B: 2 mm, C–D 0.5 mm.
FIGURE 5. Scalibregma hanseni n in Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp.
FIGURE 5. Scalibregma hanseni n. sp. Body structures. A. Prostomium and anterior chaetigers, dorsal view. B. Pygidium. C. Notopodia of chaetigers 3–5, with branchiae. D. Notopodium of chaetiger 4, with branchia, dorsal view. E. Middle body, chaetigers 6–18. F. Posterior body, ventral view. G. Posterior parapodium with interramal sense organ. H. Close-up of sense organ. A, B, C from paratype, ZMBN 94020, D specimen from Jan Mayen Sta. 86.07.27.2. E, G–H specimen from Norwegian continental slope, Sta. 85.01.08.1. F specimen from Norwegian continental slope, Sta. 83.06.17.3. Scale bars: A–B, E–F: 200 µm; C– D, G–H: 20 µm.
FIGURE 4. Scalibregma hanseni n in Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp.
FIGURE 4. Scalibregma hanseni n. sp. A. Paratype, ZMBN 94019. B. Holotype, ventral view, ZMBN 94016. C. Left parapodium of chaetiger 10, posterior view. D. Left parapodium of chaetiger 21, posterior view. E. Close-up microphoto of dorsal cirrus with internal glandular structure, parapodium 21. F. Posterior end and pygidium with anal cirri. A from paratype, type locality, ZMBN 94019, and C–E from ZMBN 94021 Sta. R351-356. F specimen from Norwegian continental slope Sta. 84.05.23.1. Scale bars: A–B: 2 mm, C–D: 200 µm, E: 50 µm, F: 0.5 mm.
FIGURE 6. Scalibregma hanseni n in Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp.
FIGURE 6. Scalibregma hanseni n. sp. A. Parapodia of chaetigers 1 and 2, with capillary chaetae and blunt spines, anteroventral view. B. Close-up of notopodium of chaetiger 1. C. Close-up of notopodium of chaetiger 2. D. Notopodium of chaetiger 3, with capillary and furcate chaetae. E. Notopodium of chaetiger 4, with capillary and furcate chaetae. F. Microphoto, phase contrast, of furcate chaetae, neuropodium 20. A-D from paratype, ZMBN 94018, E specimen from Norwegian continental slope, Sta. 85.01.08.1, F from paratype, type locality, ZMBN 94021. Scale bars: A–E: 20 µm, F: 50 µm.
FIGURE 9. Oligobregma mucronata n in New species of Scalibregmatidae (Annelida, Polychaeta) from the East Antarctic Peninsula including a description of the ecology and post-larval development of species of Scalibregma and Oligobregma
FIGURE 9. Oligobregma mucronata n. sp. Photomicrographs: A, holotype, Sta. NBP-21 (LACM-AHF Poly 7013), anterior half of body in ventral view; B, posterior parapodium, anterior view; C, same parapodium, detail of dorsal cirrus and internal glands; D, same parapodium, detail of ventral cirrus and internal glands; E‒I, developmental series of the prostomium (E, Sta. NBP-18, 20 setigers, 2.4 mm long; F, Sta.NBP-21, 22 setigers, 2.8 mm long; G, Sta. NBP-04, 24 setigers, 3.0 mm long; H, Sta. NBP-13, 28 setigers, 4.0 mm long; I, Sta. NBP-21, 30 setigers, 9.5 mm long); J, sperm packets from specimen from Sta. NBP- 20; K, capillaries and lyrate setae from a posterior notopodium from Sta. NBP-21. Abbreviations: dC, dorsal cirrus, vC, ventral cirrus.
FIGURE 8. Oligobregma mucronata n in New species of Scalibregmatidae (Annelida, Polychaeta) from the East Antarctic Peninsula including a description of the ecology and post-larval development of species of Scalibregma and Oligobregma
FIGURE 8. Oligobregma mucronata n. sp. Paratypes, Sta. NBP-21 (LACM-AHF-Poly 7014): A, anterior end, dorsal view; B, anterior end, ventral view; C, large notopodial spines from setiger 2; D, lyrate seta from posterior setiger; E, posterior parapodium, anterior view; F, pygidium, dorsal view. Abbreviations: dC, dorsal cirrus, intP; interramal papilla; lL, lower lip of mouth; neP, neuropodium; noP, notopodium; per, peristomium; pr, prostomium; uL, upper lip of mouth, vC, ventral cirrus; vG, ventral groove.
FIGURE 7. Pseudoscalibregma palmeri n in New species of Scalibregmatidae (Annelida, Polychaeta) from the East Antarctic Peninsula including a description of the ecology and post-larval development of species of Scalibregma and Oligobregma
FIGURE 7. Pseudoscalibregma palmeri n. sp. Photomicrographs of holotype, Sta. NBP-03 (LACM-AHF-Poly 7009): A, anterior and middle body segments, dorsal view; B, anterior end, ventral view; C, posterior parapodium, posterior view; D, same, detail of dorsal cirrus; E, same, detail of ventral cirrus. Abbreviations: dC, dorsal cirrus, intP; interramal papilla; neP, neuropodium; noP, notopodium; vC, ventral cirrus.
FIGURE 6. Pseudoscalibregma palmeri n in New species of Scalibregmatidae (Annelida, Polychaeta) from the East Antarctic Peninsula including a description of the ecology and post-larval development of species of Scalibregma and Oligobregma
FIGURE 6. Pseudoscalibregma palmeri n. sp. Holotype, Sta. NBP-03 (LACM-AHF-Poly 7009): A, anterior end, dorsal view; B, anterior end, ventral view; C, detail of interparapodial papilla; D, short spinous setae from setiger 1; E, lyrate seta from middle body setiger.—Pseudoscalibregma bransfieldium: F, short spinous setae from setiger 1; G, posterior parapodium, anterior view. Abbreviations: dC, dorsal cirrus, intP; interramal papilla; lL, lower lip of mouth; neP, neuropodium; noP, notopodium, per, peristomium; pr, prostomium; uL, upper lip of mouth, vC, ventral cirrus; vG, ventral groove.
FIGURE 1. Scalibregma australis n in New species of Scalibregmatidae (Annelida, Polychaeta) from the East Antarctic Peninsula including a description of the ecology and post-larval development of species of Scalibregma and Oligobregma
FIGURE 1. Scalibregma australis n. sp. SEMs from Sta. NBP 29: A, anterior end, dorsal view; B, same specimen showing details of prostomium, peristomium, and setiger 1; C, anterior end of another specimen, right lateral view; D, posterior end, right lateral view; E, parapodia from posterior setigers, right lateral view; F, notosetae from setiger 1, with anterior row of short spinous setae (arrows) and three rows of capillaries; G, detail of two short neuropodial spinous from setiger 1 and bases of two capillaries with numerous short bristles or fibril endings; H, four lyrate neurosetae from setiger 2; I, same, detail of a single lyrate seta with plate-like bristles along interior margin of tynes. Abbreviations: br, branchiae; dC, dorsal cirrus, frH, frontal horn, intP; interramal papilla; lL, lower lip of mouth; mo, mouth; neP, neuropodium; noP, notopodium; per, peristomium; pr, prostomium; pyg, pygidium; uL, upper lip of mouth, vC, ventral cirrus; vG, ventral groove.
FIGURE 3. Scalibregma australis n in New species of Scalibregmatidae (Annelida, Polychaeta) from the East Antarctic Peninsula including a description of the ecology and post-larval development of species of Scalibregma and Oligobregma
FIGURE 3. Scalibregma australis n. sp. Photomicrographs of Paratypes Sta. NBP-01 (LACM-AHF Poly 7001): A, anterior end, dorsal view; B, anterior end, ventral view; C, entire animal, ventral view; D‒E, dorsal cirri from middle (D) and posterior (E) parapodia showing internal glands; F‒G, ventral cirri from middle (F) and posterior (G) parapodia showing internal glands; H, oocytes, from parts of ovaries; I‒L, oocytes in different stages of maturation; M, sperm packet with sperm nuclei and flagella visible. Abbreviations: dC, dorsal cirrus, vC, ventral cirrus; vG, ventral groove.
FIGURE 5. Scalibregma australis n in New species of Scalibregmatidae (Annelida, Polychaeta) from the East Antarctic Peninsula including a description of the ecology and post-larval development of species of Scalibregma and Oligobregma
FIGURE 5. Scalibregma australis n. sp. Photomicrographs of post-larvae and juveniles: A‒F, developmental series of the prostomium (A, 16 setigers; B, 17 setigers; C, 20 setigers; D, 22 setigers, E, 28 setigers; F, 30 setigers); G‒I, developmental series of the pygidial cirri (G, 20 setigers; H, 18 setigers; I, 28 setigers with pigmented glands in dorsal cirri); J‒L, changes in body shape, narrowing of posterior end (J, 18 setigers; K, 20 setigers; L, 22 setigers with pigmented glands in dorsal cirri); M, anterior, 28-setiger specimen; N, 30-setiger juvenile, ventral view showing development of the upper and lower lips of the mouth, branchiae, gland on setiger 4, and ventral ridge line. Abbreviations: br, branchiae; gL, gland, lL, lower lip of mouth; pr, prostomium; uL, upper lip of mouth.
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