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17 results for “Mesochaetopterus”
Figure 12 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 12. Mesochaetopterus rogeri sp. nov., seasonal pattern in abundance at Punta del Tordera, in relation to water temperature and wave height. A, Water temperature at 20-m deep and significant wave height. B, Population density.
Figure 11. Mesochaetopterus xerecus. A, Dorsalmost uncini from neuropodia B1. B, Ventralmost uncini from neuropodia B1. C, Uncini from notopodia B2. D, Uncini from neuropodia B2. E, Uncini from notopodia B3. F, Uncini from neuropodia B3. G in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 11. Mesochaetopterus xerecus. A, Dorsalmost uncini from neuropodia B1. B, Ventralmost uncini from neuropodia B1. C, Uncini from notopodia B2. D, Uncini from neuropodia B2. E, Uncini from notopodia B3. F, Uncini from neuropodia B3. G, Uncini from the anterior region of notopodia C2. H, Uncini from the posterior region of notopodia C2. I, Uncini from the anterior region of neuropodia C2. J, Uncini from the posterior region of neuropodia C2. K, Uncini from notopodia C30. L, Uncini from neuropodia C30. Scale bars are in Mm.
Figure 10. Mesochaetopterus xerecus. A in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 10. Mesochaetopterus xerecus. A, Chaetal arrangement of the modified A4 chaetiger. B–J, Chaetae. B, Tip of the dorsal finely pointed lancet-like chaeta 'd'. C, Dorsolateral transparent knife-like chaeta 'ld1'. D, Dorsolateral transparent knife-like chaeta 'ld2'. E, Dorsolateral brownish knife-like chaeta 'ld3'. F, Lateroventral brownish knife-like chaeta 'ld3'. G, H, I, Typical modified chaetae: lv2, lateral; lv3, lateroventral; v, ventralmost. J, Tip for the ventralmost modified chaeta 'v'. Scale bars are in Mm.
Figure 9. Mesochaetopterus xerecus. A, Dorsalmost capillary chaeta from A8. B in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 9. Mesochaetopterus xerecus. A, Dorsalmost capillary chaeta from A8. B, Dorsolateral fine-lanceolate chaeta from A8. C, Lateroventral sickle-like chaeta from A8. D, Tip of the lateroventral sickle-like chaeta from A8. E, Ventralmost lancet-like chaeta from A8. F, Tip of the ventralmost lancet-like chaeta from A8. G, Ventralmost sickle-like chaeta from A10. Scale bars are in Mm.
Figure 7. Mesochaetopterus xerecus. A in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 7. Mesochaetopterus xerecus. A, Dorsal view of region A (preserved). B, Ventral view of region A (preserved). C–J, Chaetae. C, Dorsalmost capillary chaeta from A1. D, Dorsolateral fine-lanceolate chaeta from A1. E, Ventral oar-like chaeta from A1. F, Tip of the ventral oar-like chaeta from A1. G, Dorsalmost fine-lanceolate chaeta from A3. H, Tip of the dorsalmost fine-lanceolate chaeta from A3. I, Ventral oar-like chaeta from A3. J, Tip of the ventral oar-like chaeta from A3. Scale bars are in cm in A and B, and are in Mm in C–J.
Figure 6 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 6. Mesochaetopterus rogeri sp. nov. A, Dorsalmost uncini from neuropodia B1. B, Ventralmost uncini from neuropodia B1. C, Uncini from notopodia B2. D, Uncini from neuropodia B2. E, Uncini from notopodia B3. F, Uncini from neuropodia B3. G, Uncini from the anterior region of notopodia C2. H, Uncini from the posterior region of notopodia C2. I, Uncini from the anterior region of neuropodia C2. J, Uncini from the posterior region of neuropodia C2. Scale Bars are in Mm.
Figure 3 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 3. Individual gene trees generated by Bayesian inference for 18S rRNA (A), cytochrome oxidase I (COI) (B), and by combining both genes (C). Only posterior probability node support values greater than 0.75 were represented. Med, Mediterranean; NS, North Sea.
Figure 5 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 5. Mesochaetopterus rogeri sp. nov. A, Chaetal arrangement of the modified A4 chaetiger. B–L, Chaetae. B, Tip of the dorsal finely pointed capillary chaeta 'd'. (C) Dorsolateral transparent knife-like chaeta 'ld1'. D, Tip of the dorsolateral transparent knife-like chaeta 'ld1'. E, Dorsolateral brownish knife-like chaeta 'ld2'. F, Tip of the dorsolateral brownish knife-like chaeta 'ld2'. G, I, K, Whole view of the typical modified chaetae 'lv1' (lateral), 'lv2' (lateroventral), and 'v' (ventralmost). H, J, L, Tips of G, I, K, respectively. Scale bars are in Mm.
Figure 4 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 4. Mesochaetopterus rogeri sp. nov. A, Dorsalmost capillary chaeta from A1. B, Tip for the dorsalmost capillary chaeta from A1. C, Dorsal fine-lanceolate chaeta from A1. D, Tip of the dorsal fine-lanceolate chaeta from A1. E, Ventral oar-like chaeta from A1. F, Tip of the ventral oar-like chaeta from A1. G, Ventral oar-like chaeta from A3. H, Tip of the ventral oar-like chaeta from chaetiger A3. I, Dorsal fine-lanceolate chaeta from A8. J, Tip of the dorsal fine-lanceolate chaeta from A8. K, Ventral sickle-like chaeta from A8. L, Tip of the ventral sickle-like chaeta from A8. Scale bars are in Mm.
Figure 2 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 2. Mesochaetopterus rogeri sp. nov., location of reports. A, Iberian Peninsula. B, Catalan coast. C, Blanes litoral. Key:, seasonal monitoring at the Punta del Tordera; 1, Almería; 2, Alicante; 3, Valencia.
Figure 8 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 8. Mesochaetopterus xerecus, scheme of a mature sperm.
FIGURE 3 in A new species of Mesochaetopterus (Annelida, Chaetopteridae) from Hong Kong, with comments on the phylogeny of the family
FIGURE 3. The chaetae of Mesochaetopterus tingkokensis n. sp. A–K, SEM micrographs; L–P, optical micrographs showing the shape of uncini. A and B, D–K: paratype IOCAS MBM240651; C: paratype IOCAS MBM240658; L–P: paratype AM W.47811. A, modified chaetae of A4. B, scale-like top surface of modified chaetae of A4. C, knife-like simple chaetae of A4. D, oar-like chaetae with pointed top on lateral side of A5. E, middle oar-like chaetae of A6. F, dorsal lateral lanceolate chaetae with rows of small projections from A3. G, uncini from ventral tori of B1 neuropodia. H, simple chaetae of C1 notopodia. I, uncini from ventral tori of C1 neuropodia. J, uncini in neuropodia from the middle of region C (chaetiger C20). K, uncini from neuropodia of the posterior of region C (chaetiger C34). L, Uncini from B1 neuropodia. M, Uncini from ventral (left) and lateral (right) tori of B2 neuropodia. N, Uncini from ventral (left) and lateral (right) tori of C1 neuropodia. O, Uncini from ventral tori of C20 (middle in region C). P, Uncini from ventral tori of C34 (posterior in region C). Scale bars: A, C–E: 200 µm; B, F, J–P: 20µm; G and I: 30µm; H: 100 µm.
FIGURE 4 in A new species of Mesochaetopterus (Annelida, Chaetopteridae) from Hong Kong, with comments on the phylogeny of the family
FIGURE 4. Phylogenetic tree generated by two methods of analysis (ML/MP). A, based on concatenated COI, 18S rRNA and 28S rRNA gene sequences; B–D, based on individual genes. Numbers above the branches represent ML/MP bootstrap values based on 1,000 replicates. Highest possible support is 100. Values below 70 are considered weak, and values below 50 are not shown. Clade with an asterisk indicates bootstrap value below 50.
FIGURE 2. Mesochaetopterus tingkokensis n in A new species of Mesochaetopterus (Annelida, Chaetopteridae) from Hong Kong, with comments on the phylogeny of the family
FIGURE 2. Mesochaetopterus tingkokensis n. sp. B, C, J, K, L and N: holotype; A, D, F and H: paratype AM W.47813; E, G and I: paratype AM W.47812; M: paratype IOCAS MBM240651. A, dorsal view of anterior with palps. B, pigment on ventral prostomium. C, dorsal view of the junction between prostomium and A1, with arrows showing the pigments. D, lateral view of the region A and B1. E, dorsal view of anterior B1. F, lateral view of anterior B1. G, dorsal view of anterior B2. H, lateral view of anterior B2. I, ventral view of anterior B2. J, lateral view of posterior B2 and anterior C1, showing the auricular accessory feeding organs (cupules). K, parapodia of C8 (anterior region C). L, parapodia of C20 (middle of region C). M, parapodia of C24 (near posterior end) with arrows showing eggs. N, posterior end and pygidium. Abbreviations: p, palp; per: peristomium; pr: prostomium; no: notopodia; an: anus. All scar bars represent 1 mm.
FIGURE 1. Mesochaetopterus tingkokensis n in A new species of Mesochaetopterus (Annelida, Chaetopteridae) from Hong Kong, with comments on the phylogeny of the family
FIGURE 1. Mesochaetopterus tingkokensis n. sp. A, A photograph of Ting Kok showing the mangrove stand in the foreground and the mudflat where the type specimens were collected. B, Three tubes on the beach, with the top 1–2 cm above the sediment surface. C, A whole worm (holotype). D, A whole tube. E, Ventral view of the anterior body of a live specimen. F, Lateral view of the anterior body of a live specimen. G, Newly collected live worms in a 9-cm Petri dish. H, Inner surface of tube with arrows showing perforations. C and E, holotype IOCAS MBM240650; F and G, paratype AM W.47811. B, C and D: Scale bars = 1 cm.
FIGURE 5 in A new species of Mesochaetopterus (Annelida, Chaetopteridae) from Hong Kong, with comments on the phylogeny of the family
FIGURE 5. Comparison of Mesochaetopterus japonicus, M. selangolus and M. tingkokensis n. sp. A and D: CBM-ZW522; G: CBM-ZW523; B, E and H: CBM-ZW601; C and F: paratype AM W.47813; I: paratype IOCAS MBM240651.
Figure 1 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 1. Mesochaetopterus rogeri sp. nov. A, B, Two typical positions of the protruded tentacles in living worms (underwater pictures taken by L. Dantart). C, Regions A, B, and C (preserved worm, morphotype with reddish bands). D, Ventral view of region A (preserved worm, morphotype without reddish bands). E, Detail of the anterior end (dorsal view). F, Detail of the anterior end (dorsal view, tentacles removed). Ar, region A; b1–b3, segments of region B; d1–d3, dorsal rami of region-B segments; v1–v3, ventral rami of region-B segments; Cr, region C. Scale bars are in cm.
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