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51 results for “Chaetopteridae”
Figure 8 in Scale-worms (Polychaeta, Polynoidae) associated with chaetopterid worms (Polychaeta, Chaetopteridae), with description of a new genus and species
Figure 8. Ophthalmonoe pettiboneae, parapodia. (A) Second elytrigerous chaetiger (long ventral cirrus separated), ventral view; (B) 20th cirrigerous chaetiger, anterior view showing the long, intensely pigmented dorsal cirrus; (C) 16th cirrigerous chaetiger, posterior view, showing the short triangular postchaetal lobe; (D) 40th cirrigerous chaetiger, anterior view showing the short dorsal cirrus; (E) tips of hooded neurochaeta.
Figure 6 in Scale-worms (Polychaeta, Polynoidae) associated with chaetopterid worms (Polychaeta, Chaetopteridae), with description of a new genus and species
Figure 6. Lepidasthenia brunnea. (A) Anterior end, dorsal view; (B) anterior end, lateral view; (C) tube of the host cut to show the symbiont on one section (up) and the host tentacles in the other (down); (D) elytron; (E) detail of the external edge of elytron. Scale bars are in mm.
Figure 4 in Scale-worms (Polychaeta, Polynoidae) associated with chaetopterid worms (Polychaeta, Chaetopteridae), with description of a new genus and species
Figure 4. Anotochaetonoe michelbhaudi gen. and sp. nov., parapodia. (A) 14th cirrigerous chaetiger, anterior view with details of prechaetal lobe; (B) 15th elytrigerous chaetiger, anterior view; (C) 13th cirrigerous chaetiger, anterodorsal view; (D) ciliated papilla from the ventral surface of neuropodia. (A, B) Holotype; (C) paratype. Scale bars are in mm.
Figure 7 in Scale-worms (Polychaeta, Polynoidae) associated with chaetopterid worms (Polychaeta, Chaetopteridae), with description of a new genus and species
Figure 7. Ophthalmonoe pettiboneae. (A) Anterior end, dorsal view, showing both the pigmentation and the elytra arrangement; (B) terminal view of the anterior end, showing the buccal lips; (C) elytron; (D) detail of the surface of the elytron with micropapillae; (E) living worm (lacking the posterior end) inside the tube of the host. Scale bars are in mm (except D).
Figure 1 in Scale-worms (Polychaeta, Polynoidae) associated with chaetopterid worms (Polychaeta, Chaetopteridae), with description of a new genus and species
Figure 1. Anotochaetonoe michelbhaudi gen. and sp. nov. (A) Whole worm, lateral view; (B, C) anterior end, dorsal view; (D) anterior end, lateral view; (E) terminal view of the pharynx, showing papillae and teeth; (F) terminal view of anterior end, showing the buccal lips. (A, B, D, E) Holotype; (C, F) paratype. DL, dorsal lip; LL, lateral lips; VL, ventral lip. Scale bars are in mm.
Figure 3 in Scale-worms (Polychaeta, Polynoidae) associated with chaetopterid worms (Polychaeta, Chaetopteridae), with description of a new genus and species
Figure 3. Anotochaetonoe michelbhaudi gen. and sp. nov., elytron of paratype from unknown segment. (A) Entire view; (B) detail of the structure of the dorsal surface showing the polygonal units of pigmentation; (C) detail of the anterior edge. Scale bars are in mm.
Figure 5 in Scale-worms (Polychaeta, Polynoidae) associated with chaetopterid worms (Polychaeta, Chaetopteridae), with description of a new genus and species
Figure 5. Anotochaetonoe michelbhaudi gen. and sp. nov. inside the tube of the host. (A) Posterior end protruding from the tube of the host; (B) anterior end of symbiont in contact with body of host. Hh, head of host; Sh, head of symbiont; Sp, pygidium of symbiont. Scale bars are in mm.
Figure 2 in Scale-worms (Polychaeta, Polynoidae) associated with chaetopterid worms (Polychaeta, Chaetopteridae), with description of a new genus and species
Figure 2. Anotochaetonoe michelbhaudi gen. and sp. nov. (A) Anterior end, dorsal view; (B) anterior end, lateral view; (C) posterior end, dorsal view; (D) dorsal neurochaeta; (E) middle neurochaeta; (F) ventral neurochaeta. (A–F) Holotype. Scale bars are in mm.
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 4. Phyllochaetopterus lauensis n in A new species of Phyllochaetopterus (Chaetopteridae: Annelida) from near hydrothermal vents in the Lau Basin, western Pacific Ocean
FIGURE 4. Phyllochaetopterus lauensis n. sp., holotype and paratypes SIO-BIC-A976 and SAMA E3673. A–C, lateral and ventral views of region C; smaller, more posterior segments in Fig. 1A might be regenerated; see also Fig. 1B, segments 5C (larger) and 6C and following (smaller). D, Part of pygidium and posterior chaetigers, ventral view. E, Tube of paratype (SAMA-E 3673). F to J drawn from SEM micrographs. F–H, modified chaetae of A4. F, lateral view of anterior part. G and H, frontal view of head. I, lanceolate leaf-like chaeta of region A. J, uncinus of B2.
FIGURE 2. Phyllochaetopterus lauensis n in A new species of Phyllochaetopterus (Chaetopteridae: Annelida) from near hydrothermal vents in the Lau Basin, western Pacific Ocean
FIGURE 2. Phyllochaetopterus lauensis n. sp. and SEM micrographs of A4 modified chaetae (A–C). A, B, lateral view. C, frontal view of head. D, uncini of B2. P. claparedii McIntosh, 1885 from Tateyama, Boso Peninsula, Tokyo Bay, CMNH-ZW(uncatalogued). E, F, A4 modified chaetae. E, ventral view. F, frontal view of head.
FIGURE 1. Phyllochaetopterus lauensis n in A new species of Phyllochaetopterus (Chaetopteridae: Annelida) from near hydrothermal vents in the Lau Basin, western Pacific Ocean
FIGURE 1. Phyllochaetopterus lauensis n. sp. Photographs of live worms. A. Tube with live animal inside. B–E. Paratype-SAMA-E-3673. B. Right dorsolateral view. C. Dorsal view, showing three body regions; regions A and B pale, region C dark green; A4 cutting chaetae light brown to amber; palps (p) white; note that region A has 9 left and 10 right notopodia. D. Lateral view showing stout cutting chaeta (cc) of A4 and notopodia (n) of B1 and B2. Arrow points to pigmented section of plastron. E. Dorsal view of anterior end showing cirri (c), dorsal groove (dg) and cutting chaetae.
FIGURE 3. Phyllochaetopterus lauensis n in A new species of Phyllochaetopterus (Chaetopteridae: Annelida) from near hydrothermal vents in the Lau Basin, western Pacific Ocean
FIGURE 3. Phyllochaetopterus lauensis n. sp., A, Lateral view of paratype OMNH-Iv5025. Arrows point to cirri of chaetiger 1. Four sections of plastron indicated by numbers 1-IV. B, Lateral view of head and A and B regions of the holotype. Four sections of plastron indicated by numbers I-IV. C, Ventral view of paratype USNM 1106928, showing different pigmentation pattern of plastron. D, Paratype OMNH-Iv5025, close-up dorsal view of A9 to C1 showing Bregion parapodia and fluid-filled swellings (sw). E, Paratype SAMA E3673, close-up dorsal view of head to chaetiger A1, showing small cirri of first chaetiger (arrows) with projecting internal chaetae.
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.
Fig. 1 in Hidden in plain sight, Chaetopterus dewysee sp. nov. (Chaetopteridae, Annelida) - A new species from Southern California
Fig. 1. Chaetopterus dewysee sp. nov. A. Live photograph of a paratype (SIO-BIC A11652), showing the three morphologically distinct regions of a chaetopterid annelid; a = region A, b = region B, c = region C. B. Holotype together with its tube (SIO-BIC A11476). C. Larva of Chaetopterus dewysee sp. nov. collected from a plankton sample off La Jolla and sequenced (GenBank: MN991232). D. Habitat of the new species, tubes are marked with arrow-heads.
Fig. 3 in Hidden in plain sight, Chaetopterus dewysee sp. nov. (Chaetopteridae, Annelida) - A new species from Southern California
Fig. 3. Chaetopterus dewysee sp. nov. A. Biramous chaetiger a10 parapodium with a long notopodium and a neuropodial lobe. B. Neuropodial uncinus of chaetiger a10. C. Chaetiger b3 neuropodium with one row of uncini, arrow-head marks the patch of uncini (E) at the upper ventral margin of enlarged fan. D. Aliform notopodium of chaetiger b1. F. Notopodial uncinus of chaetiger b3. G. Biramous region C parapodia. H. Uncini of region C lateral lobe arranged in 2–3 rows. I. Chaetiger c1 uncinus of lateral lobe.
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