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342 results for “New taxon”
FIGURE 16 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 16. Methyl green staining. Sabellomma minuta gen. nov., comb. nov. (spec. 16 [ZUEC-POL 7444], photographed after ~2 hours in ethanol after immersion in methyl green solution). A: total worm, ventral view; B: total worm, dorsal view; C–D: anterior end, ventral views; E: posterior end, ventral view; F: posterior end, dorsal view. Sabellomma collinae gen. nov., sp. nov. (holotype [LACM-AHF 2404], photographed after ~2.5 hours in ethanol after immersion in methyl green solution). G: total worm, right lateral view; H: anterior end, dorsal view; I–J: anterior end, ventral views; K: posterior end, right lateral view. Scale bars: A–B, G = 1 mm; C, I = 0.7 mm; D–F, K = 0.3 mm; H, J = 0.4 mm.
FIGURE 14 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 14. Sabellomma harrisae gen. nov., sp. nov. A: parapodia from segments 1–2; B: collar chaetae; C: notochaetae from segment 4; D–F: inferior thoracic notochaetae (paleae) from segments 3, 4 and 4, respectively; G, J: posterior abdominal neurochaetae; H–I: mid-abdominal neurochaetae. All photos from paratype 6 (LACM-AHF 2419). Scale bars: A = 40 µm; B, G–H, J = 20 µm; C = 25 µm; D = 15 µm; E = 5 µm; F = 7 µm; I = 8 µm.
FIGURE 18 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 18. Strict consensus tree of 16 minimum-length cladograms (phylogenetic analysis 1 - see text for discussion), showing relationships among Sabellinae. Note that the genus Sabellomma is paraphyletic.
FIGURE 15 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 15. Sabellomma harrisae gen. nov., sp. nov. A: neurochaetae from segment 4; B: uncini from segment 3; C: companion chaetae from segment 3; D–E: uncini from segment 6; F, J: anterior abdominal uncini; G–I: posterior abdominal uncini. All photos from paratype 6 (LACM-AHF 2419). Scale bars: A = 15 µm; B = 8 µm; C = 3 µm; D, G, J = 4 µm; E, I = 5 µm; F, H = 2 µm.
FIGURE 10 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 10. Sabellomma collinae gen. nov., sp. nov. A: notochaetae from segment 4; B: inferior thoracic notochaetae (paleae) from segment 2; C–D: mid-abdominal neurochaetae; E: neurochaetae from segment 3; F: mid-abdominal uncini; G: neurochaetae from segment 2; H: uncini from segment 3; I–K: companion chaetae from segments 4, 3 and 2, respectively. All photos from paratype 6 (LACM-AHF 2410). Scale bars: A = 30 µm; B = 10 µm; C–D = 12 µm; E = 20 µm; F = 5 µm; G–H = 8 µm; I, K = 4 µm; J = 2 µm.
FIGURE 11 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 11. Sabellomma harrisae gen. nov., sp. nov. A–B: live specimens; C: total worm, dorsal view; D: total worm, ventral view; E: total worm, right lateral view; F: anterior end, right lateral view; G: detail of anterior end, right lateral view; H: anterior end, dorsal view; I: anterior end, ventral view; J: posterior end, left ventro-lateral view. Photos A–B from paratype 11 (LACM-AHF POLY 2424; no track for other specs in photo B), courtesy L. Harris; photos C–J from holotype (LACM-AHF 2413). Scale bars: C–E = 0.5 mm; F = 0.4 mm; G, J = 0.2 mm; H–I = 0.3 mm.
FIGURE 9 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 9. Sabellomma collinae gen. nov., sp. nov. A: collar chaetae; B: notochaetae from segment 4; C: neurochaetae from segment 13; D: notochaeta from anterior row from segment 13; E: notochaeta from posterior row from segment 13; F: neurochaetae from segment 4; G–H: uncini from segment 15. All photos from paratype 6 (LACM-AHF 2410). Scale bars: A–B, D = 30 µm; C, E = 25 µm; F = 20 µm; G–H = 10 µm.
FIGURE 12 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 12. Sabellomma harrisae gen. nov., sp. nov. A: anterior end, right lateral view; B: anterior end, left lateral view; C: dissected half crown and lips; D: anterior end, dorsal view; E: anterior end, ventral view; F: anterior end, left lateral view; G: anterior end, right lateral view; H–I: details of collar and base of crown, right ventro-lateral and dorsal views, respectively; J: dorsal lip (dissected crown); unspecified arrow points to connection between dorsal lip and dorsal pinnular appendage. br = branchial ridge; dl = dorsal lip; pa = pinnular appendage; pl = parallel lamellae; ra = radiolar appendage; vs = ventral sacs. Photos A–B, D–I from paratype 6 (LACM-AHF 2419); photos C and J from paratype 12 (LACM-AHF 2425). Scale bars: A, C = 0.3 mm; B = 0.4 mm; D, F–G = 0.1 mm; E, I = 75 µm; H, J = 50 µm.
FIGURE 13 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 13. Sabellomma harrisae gen. nov., sp. nov. A: collar chaetae; B: notochaetae from segment 3; C: superior thoracic notochaetae from segment 3; D: inferior thoracic notochaetae (paleae) from segment 3; E: neurochaetae from segment 12; F–G: uncini from segment 3; H: companion chaetae from segment 3; I: uncini from segment 10. All photos from paratype 10 (LACM-AHF 2423). Scale bars: A–E = 30 µm; F, H = 8 µm; G = 15 µm; I = 10 µm.
FIGURE 8 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 8. Sabellomma collinae gen. nov., sp. nov. A: anterior end, dorsal view; B: anterior end, left lateral view; C: anterior end, ventral view; D: detail of anterior end, dorsal view; E: detail of anterior end, left lateral view; F: dorsal lip (dissected crown); G–H: details of collar and base of crown, ventral view; I: posterior end, left lateral view. Unspecified arrows point to ciliated patch; bp = basalmost pinnule; br = branchial ridge; dl = dorsal lip; pl = parallel lamellae; ra = radiolar appendage; vs = ventral sacs. Photos A–E, G–H from paratype 7 (LACM-AHF 2411); photo F from paratype 6 (LACM-AHF 2410). Scale bars: A–B = 0.4 mm; C–E = 0.2 mm; F–G, I = 0.1 mm; H = 60 µm.
FIGURE 22 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 22. Strict consensus tree presented in Fig. 19, but 'inapplicable' character optimizations for distribution of simple eyes (subject 9; cf. Tables 6–7) correctly treated as inapplicable. Note that Sabellomma is monophyletic on the basis of simple eyes distributed along the entire lengths of radioles [9(1)] and presence of interramal eyespots [21(1)]. Relationships among Sabellomma are determined by one of the optimizations of dorsal pinnular appendages (subject 13); compare with alternate optimization in Fig. 20.
FIGURE 7 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 7. Sabellomma collinae gen. nov., sp. nov. A: total worm, left lateral view; B: total worm, dorsal view; C: total worm, right lateral view; D: total worm, ventral view; E: anterior end, ventral view; F: anterior end, left ventro-lateral view; G: anterior end, left lateral view; H: anterior end, dorsal view; I: anterior end, right lateral view; J: detail of anterior end, ventral view; K: detail of anterior end, left ventro-lateral view; L: anterior to mid-abdominal segments; M: posterior end, right lateral view. All photos from holotype (LACM-AHF 2404). vs = ventral sacs. Scale bars: A–D = 1 mm; E–I, K = 0.7 mm; J = 0.4 mm; L–M = 0.3 mm.
FIGURE 5. Sabellomma minuta gen. nov., comb. nov. A in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 5. Sabellomma minuta gen. nov., comb. nov. A: neurochaetae from segment 2; B–D: companion chaetae from segments 2, 4 and 2, respectively; E–F: uncini from segment 4; G: anterior abdominal uncini; H: mid-abdominal uncini; I: posterior abdominal uncini; J: uncini from segment 2. All photos from spec. 10 (LACM-AHF 2400). Scale bars: A = 20 µm; B–C = 8 µm; D, F–G, J = 5 µm; E = 9 µm; H–I = 6 µm.
FIGURE 6. Sabellomma minuta gen. nov., comb. nov. A in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 6. Sabellomma minuta gen. nov., comb. nov. A: inferior thoracic notochaetae (paleae) from segment 3; B: neurochaetae from segment 3; C: neurochaetae from segment 9; D: uncini from segment 9. All photos from holotype (AMNH 2894). Scale bars: A–C = 60 µm; D = 40 µm.
FIGURE 24 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 24. Detail of the phylogenetic and specific hypotheses from Fig. 22, showing optimizations of dorsal pinnular appendages. The formal definitions of these hypotheses are also presented, indicating that specific hypotheses S. collinae and S. minuta cannot be defined (cf. Figs 21, 23 for alternative optimizations).
FIGURE 17 in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 17. Methyl green staining. Sabellomma harrisae gen. nov., sp. nov. A–B: total worm; C: anterior end, ventral view; D: posterior end, ventral view; E: total worm, left lateral view; F: posterior end, dorsal view. Photos A–D from spec. BPBM 1237, after ~2.5 hours in ethanol after immersion in methyl green solution; photos E–F from paratype 2 (LACM-AHF 2415), after ~24 hours in ethanol after immersion in methyl green solution. Scale bars: A = 0.6 mm; B = 1 mm; C, F = 0.3 mm; D = 0.4 mm; E = 0.7 mm.
FIGURE 4. Sabellomma minuta gen. nov., comb. nov. A in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 4. Sabellomma minuta gen. nov., comb. nov. A: collar chaetae; B: notochaetae from segment 2; C: notochaetae from segment 5; D: neurochaetae from segment 6; E–F: inferior thoracic notochaetae (paleae) from segments 3 and 5, respectively; G: detail of neurochaetae from anterior row from segment 6. All photos from spec. 10 (LACM-AHF 2400). Scale bars: A, D = 30 µm; B = 40 µm; C = 20 µm; E = 9 µm; F = 12 µm; G = 15 µm.
FIGURE 2. Sabellomma minuta gen. nov., comb. nov. A in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 2. Sabellomma minuta gen. nov., comb. nov. A: total worm, right lateral view; B: anterior end, left lateral view; C: anterior end, dorsal view; D: anterior end, left lateral view; E: dorsal lip (dissected crown); F–G: details of base of crown; H: anterior end, right lateral view; I–J: details of anterior end, ventral view. br = branchial ridge; ci = ciliated patch; dl = dorsal lip; pa = pinnular appendage; pl = parallel lamellae; ra = radiolar appendage; vs = ventral sacs. Photos A–D, F–J from spec. 10 (LACM-AHF 2400); photo E from spec. 20 (LACM-AHF 2403). Scale bars: A–B = 0.5 mm; C = 0.3 mm; D, H = 0.4 mm; E, I = 75 µm; F = 0.1 mm; G = 40 µm; J = 80 µm.
FIGURE 3. Sabellomma minuta gen. nov., comb. nov. A in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 3. Sabellomma minuta gen. nov., comb. nov. A: middle part of radiole; B: collar chaetae; C: notochaetae from segment 3; D: neurochaetae from segment 10; E: neurochaetae from segment 3; F: uncini from segment 10; G: neurochaetae from segment 4; H: uncini from segment 18. Photos B–C, E, G–H from spec. 19 (ZUEC-POL 7445); photos D and F from spec. 10 (LACM-AHF 2400). Scale bars: A = 60 µm; B–C, E, G = 30 µm; D = 40 µm; F, H = 20 µm.
FIGURE 1. Sabellomma minuta gen. nov., comb. nov. A in A new genus and new species of fan worms (Polychaeta: Sabellidae) from Atlantic and Pacific Oceans—the formal treatment of taxon names as explanatory hypotheses
FIGURE 1. Sabellomma minuta gen. nov., comb. nov. A: entire specimen, left ventro-lateral view; B–D: entire specimen, ventral, ventral and left lateral views, respectively; E, G: anterior end, ventral views; F: anterior end, right lateral view; H: posterior end, right ventro-lateral view. A, C–D, F–H from spec. 18 (MZUSP 1050), B, E from holotype (AMNH 2894). Scale bars: A–D = 2 mm; E–G = 0.7 mm; H = 0.5 mm.
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