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9 results for “Terebrasabella”
FIGURE 8 in Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia
FIGURE 8. Terebrasabella fitzhughi sp. nov., S.E.M. photographs, AM W29469 A. Row of rasp-shaped uncini from (thoracic) chaetiger 7. B. Abdominal capillary neurochaetae and notochaetal uncini, chaetiger 11. C. Three abdominal notochaetal uncini, chaetiger 11. D. Ciliated faecal groove. AM W29473 E. Anterior end, juvenile. AM W29474 F. Abdominal chaetigers, juvenile specimen. AM W29469 G. Chaetiger 8, notochaetal fascicle, showing capillary chaetae, and newly-emerging chaetae.
FIGURE 9 in Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia
FIGURE 9. Single shortest tree (length 15 steps) found from a parsimony analysis of the data matrix shown in Table 2. There were two unequivocal apomorphies supporting the monophyly of Terebrasabella: 5. Two pairs of radioles; and 11. Three abdominal segments. In two of the possible three transformations for each of characters 7–9 the states are apomorphies for the respective genera and so they are marked as supporting these nodes (though marked with *). For Terebrasabella this suggests that there may be three further apomorphies: 7. Rasp-shaped avicular uncini in chaetigers 7–8; 8. Companion chaetae on chaetigers 2–6 only; and 9. Avicular uncini in abdominal chaetigers. Within Terebrasabella, it would appear that T. heterouncinata and T. hutchingsae sp. nov., are sister groups based on the expanded lateral teeth in thoracic uncini (6) and abdominal uncini (10).
FIGURE 7 in Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia
FIGURE 7. Terebrasabella fitzhughi sp. nov., S.E.M. photographs, AM W29469. A. Anterior end, ventral view. B. Anterior end, lateral view. C. Notochaetal fascicle, chaetiger 2. D. thoracic neurochaetal uncini, chaetiger 3. E. Neurochaetal fascicle, 2 companion chaetae and 4 uncini, chaetiger 3. F. Thoracic neurochaetal uncini and companion chaeta, chaetiger 4.
FIGURE 6 in Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia
FIGURE 6. Terebrasabella fitzhughi sp. nov., chaetae (specimen destroyed for chaetal drawings). A. Thoracic superior notochaeta, chaetiger 1. B. Thoracic inferior notochaeta, chaetiger 1. C. Thoracic notochaeta, chaetiger 7. D. Abdominal neurochaeta. E. Companion chaeta, chaetiger 3. F. Neurochaetal uncinus, thoracic chaetiger 3.G. Thoracic neurochaetal uncinus, chaetiger 7. H. Abdominal notochaetal uncinus, chaetiger 10. Scales: A – H = 0.01mm.
FIGURE 5 in Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia
FIGURE 5. Terebrasabella fitzhughi sp. nov., Paratype AM W29468. A. Whole specimen, lateral view. B. Medial view of right side of branchial crown, with indication of branchial and radiolar skeletons. C. Medial view of left side of branchial crown. DOR = dorsal side, VEN = ventral side, vbf = ventral basal flange, dl = dorsal lip. Scales: A = 0.5mm; B & C = 0.1mm.
FIGURE 2 in Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia
FIGURE 2. Terebrasabella hutchingsae sp. nov., Paratype AM W29454, chaetae. A and B. Superior thoracic notochaetae from chaetiger 2, showing different views. C. Inferior thoracic notochaeta from chaetiger 6. D. Abdominal neurochaeta from chaetiger 10. E. Companion chaeta from chaetiger 3. F. Thoracic uncinus from chaetiger 3. G. "Palmate" neurochaetal uncinus from chaetiger 2. H. Notochaetal abdominal uncinus from chaetiger 10. I. Neurochaetal uncinus from thoracic chaetiger 7. Scales: A – I = 0.01mm.
FIGURE 1 in Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia
FIGURE 1. Terebrasabella hutchingsae sp. nov., Paratype AM W29452. A. Whole specimen, lateral view; th=thorax, abd=abdomen. B. Anterior end, ventral view, dorsal radioles omitted; vbf= ventral basal flange, vla= ventral collar lappet. C. Anterior end, dorsal view, ventral radioles omitted; dl=dorsal lip. Scales: A = 1mm; B and C = 0.1mm.
FIGURE 3 in Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia
FIGURE 3. Terebrasabella hutchingsae sp. nov., S.E.M. photographs. AM W29460 A. Anterior end, lateral view, radioles missing. B. Anterior end, dorsal view. C. Inferior and superior thoracic notochaetae. D. Large neurochaetal "palmate" uncinus from 2nd chaetiger, shown from above. E. Companion chaeta and 2 neurochaetal uncini from thoracic chaetiger 3. F. Companion chaeta and a neurochaetal uncinus from thoracic chaetiger 5.
FIGURE 4 in Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia
FIGURE 4. Terebrasabella hutchingsae sp. nov., S.E.M. photographs. AM W29460 A. Lateral view of chaetiger 7. B. Thoracic notochaetae from chaetiger 7. C. Part of row of rasp-shaped uncini from (thoracic) chaetiger 7. D. Uncinus and capillary chaetae from abdominal chaetiger. E. Thoracic uncini and companion chaeta from chaetiger 6. F. Faecal groove showing bands of cilia.
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