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44 results for “Perinereis”
Fig. 2. Perinereis anderssoni Kinberg, 1865 in Reinstatement of Perinereis bairdii (Webster, 1884) and description of P. websteri sp. nov. from Bermuda, including the reproductive morphology of two Atlantic Perinereis species (Annelida: Errantia: Phyllodocida)
Fig. 2. Perinereis anderssoni Kinberg, 1865. Topotype (ECOSUR P3208). A. Anterior end, dorsal view. B. Posterior end, dorsal view. C. Posterodorsal tentacular cirri. D. Left jaw, dorsal view. E. Chaetiger 1, right parapodium. F. Chaetiger 10, right parapodium. G. Chaetiger 28, right parapodium. H. Chaetiger 45, right parapodium. I. Chaetiger 62, right parapodium. J. Supra-acicular heterogomph falciger, chaetiger 62. K. Sub-acicular heterogomph falciger, chaetiger 28. Scale bars: A–C = 1 mm; D = 0.25 mm; E–I = 0.1 mm; J–K = 10 μm.
Fig. 1 in Reinstatement of Perinereis bairdii (Webster, 1884) and description of P. websteri sp. nov. from Bermuda, including the reproductive morphology of two Atlantic Perinereis species (Annelida: Errantia: Phyllodocida)
Fig. 1. Parapodial morphology of species of Perinereis Kinberg, 1865 and points used to obtain segments and length ratios of parapodial structures described in this work. Arrows and labels correspond to points used for the measuring parapodial structures as described in Material and methods section. A. Parapodium from posterior chaetiger of Perinereis floridana (Ehlers, 1868) (ECOSUR P1100). B. Parapodium from natatory region of Perinereis floridana (LACM-AHF 7376). Abbreviations: Dc = dorsal cirrus; DDoL = distal lobe of dorsal ligule; DoL = dorsal ligule; LDc = lower lamella of dorsal cirrus; LoM = lower lamella of median ligule; LVc = lower lamella of ventral cirrus; MeL = median ligule; NeL = neuroacicular ligule; PDoL = proximal lobe of dorsal ligule; PoL = neuropodial postchaetal lobe; PreL = notopodial prechaetal lobe; UDc = upper lamella of dorsal cirrus; UVc = upper lamella of ventral cirrus; Vc = ventral cirrus; VeL = ventral ligule; VeLa = ventral lamella.
Fig. 1. Study area and surrounding intertidal habitats. A in Two new species of Perinereis Kinberg, 1865 (Annelida: Nereididae) from the rocky shore of Maharashtra, India, including notes and an identification key to Group 1
Fig. 1. Study area and surrounding intertidal habitats. A. Coastal region of Maharashtra (western India) and collecting localities. B. Aerial view of the rocky intertidal habitat of the study area. C. Intertidal area with rocks covered with seaweed. D. Close-up view of the intertidal area with rocks covered with seaweed and oyster shells. E. Scraped-out seabed (oyster shells, algae, and sediment), burrows of polychaetes and other small invertebrates can be seen. F. Close-up view of burrowing nereidid dwelling among the seabed. Red arrows point to burrowing worms. Scale bars: B = 20 m; C = 1 m; D = 50 cm; E–F = 3 cm.
Fig. 3 in Two new species of Perinereis Kinberg, 1865 (Annelida: Nereididae) from the rocky shore of Maharashtra, India, including notes and an identification key to Group 1
Fig. 3. Perinereis misrai sp. nov. from Mumbai, Maharashtra, India. A–C, F–N. Holotype (MSUBZL-AN-PCh-06), atoke. D–E. Paratype (ZSI-WRC ANN/27), atoke. A. Whole body in dorsal view. B. Anterior end and everted proboscis in dorsal view. C. Everted proboscis in ventral view. D. Left jaw in ventral view, arrows pointing to inner canals. E. Paired oesophageal caeca (arrows) in dorsal view. F–J. Parapodia in anterior view; numbers refer to the chaetiger. K. Heterogomph spiniger from neuropodial subacicular fascicle (chaetiger 25). L. Heterogomph falciger from neuropodial subacicular fascicle (chaetiger 61). M. Heterogomph falciger from neuropodial supracicular fascicle (chaetiger 61). Scale bars: A = 9 mm; B = 0.45 mm; C–D, N = 0.5 mm; E = 0.35 mm; F, J = 0.15 mm; G–I = 0.22 mm; K = 18 μm; L–M = 10 μm.
Fig. 2 in Two new species of Perinereis Kinberg, 1865 (Annelida: Nereididae) from the rocky shore of Maharashtra, India, including notes and an identification key to Group 1
Fig. 2. Perinereis malabarensis sp. nov. from Mumbai, Maharashtra, India. A–E, H–O. Holotype (MSUB-ZL-AN-PCh-04), atoke. F–G. Paratype (ZSI-WRC ANN/26), atoke. A. Whole body in dorsal view. B. Anterior end and everted proboscis in dorsal view. C. Maxillary ring of proboscis in ventral view. D. Oral ring of proboscis in ventral view. E. Oral ring of proboscis in dorsal view. F. Left jaw in ventral view, arrow pointing to inner canals. G. Paired oesophageal caeca (arrows) in dorsal view. H–L. Parapodia in anterior view (except I and K, in posterior view), numbers refer to the chaetiger. M. Homogomph spiniger from notopodia (chaetiger 50). N. Heterogomph falciger from neuropodial supracicular fascicle (chaetiger 50). O. Heterogomph falciger from neuropodial subacicular fascicle (chaetiger 50). Scale bars: A = 6 mm; B = 0.7 mm; C–D, F = 0.5 mm; E = 0.4 mm; G = 0.8 mm; H = 0.22 mm; I–L = 0.23 mm; M = 12 μm; N–O = 16 μm.
Figure 5 in Morphological anomalies in polychaetes: Perinereis species (Polychaeta: Annelida) examples from the Brazilian coast
Figure 5. Number and type of morphological anomalies found in the species P. anderssoni and P. ponteni.
Figure 2 in Morphological anomalies in polychaetes: Perinereis species (Polychaeta: Annelida) examples from the Brazilian coast
Figure 2. Morphological anomalies in P. anderssoni: A. single antenna; B. basally fused antennae; C. completely fused antennae; D. seven tentacular cirri; E. two parapodia on the same side of chaetiger; F. five eyes; G. nine tentacular cirri; H. six tentacular cirri.
Figure 3 in Morphological anomalies in polychaetes: Perinereis species (Polychaeta: Annelida) examples from the Brazilian coast
Figure 3. Morphological anomalies in P. ponteni: A. nine tentacular cirri; B. seven tentacular cirri.
Figure 1 in Morphological anomalies in polychaetes: Perinereis species (Polychaeta: Annelida) examples from the Brazilian coast
Figure 1. Location of sampling sites in states of Brazil.
FIGURE 6. Perinereis horsti, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 6. Perinereis horsti, A, anterior end, dorsal view showing everted proboscis; B, ventral view of same; C, anterior parapodium; D, posterior parapodium; E, neuropodial heterogomph falciger, anterior parapodium.
FIGURE 5. Perinereis heterodonta, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 5. Perinereis heterodonta, A, anterior end, ventral view, dissected pharynx; B, anterior end, dorsal view; C, anterior parapodium; D, posterior parapodium; E, neuropodial heterogomph falciger, anterior parapodium; F, neuropodial homogomph spiniger, posterior parapodium.
FIGURE 7. Perinereis nuntia, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 7. Perinereis nuntia, A, anterior end, dorsal view showing everted proboscis; B, ventral view of same; C, anterior parapodium; D, posterior parapodium; E, neuropodial heterogomph falciger, anterior parapodium.
FIGURE 4. Perinereis cultrifera, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 4. Perinereis cultrifera, A, anterior end, dorsal view showing everted proboscis; B, ventral view of same; C, anterior parapodium; D, posterior parapodium; E, neuropodial heterogomph falciger, anterior parapodium; F, neuropodial homogomph spiniger, anterior parapodium.
FIGURE 5. A. Perinereis singaporiensis NTM W22581 in Nereididae (Annelida: Phyllodocida) of Lizard Island, Great Barrier Reef, Australia
FIGURE 5. A. Perinereis singaporiensis NTM W22581, alive, antero-dorsal view; B. P. 'pale_NTM W22527' NTM W22527, preserved, antero-dorsal view, pharynx everted; C. P. 'pale_NTM W22527' NTM W22527, preserved, antero-ventral view, pharynx everted; D. Platynereis polyscalma AM W.44306, alive, immature, dorsal view; E. P. polyscalma AM W.43836, alive, fluorescence image at 510–540 nm using DsRed fluorophore barrier filter, dorsal view; F. P. uniseris AM W.43800; alive, dorsal view; G. P. uniseris AM W.44500, alive, fluorescence image at 510–540 nm using DsRed fluorophore barrier filter, dorsal view'; H. Pseudonereis anomala AM W.43819; alive, dorsal view. Photo: Alexander Semenov (D, F, H). Approximate body widths: A: 3.5 mm; B, C: 1.4 mm; D: 1.0 mm; E: 0.9 mm; F: 1.0 mm; G: 0.9 mm; H: 1.4 mm.
FIGURE 2 in A new species of Perinereis Kinberg, 1865 (Annelida: Nereididae) and invalidation of two congeners from Western India
FIGURE 2. Sites and type of habitats present in the Gujarat coast, west India. A. Hard mud flats in low tide of Kamboi. B. Mounds of soft and hard calcrete mudflat at Kamboi. C. Excavated block of hard calcrete substratum, arrow indicates burrowing and boring pattern of worms, scale bar: 7 cm.
FIGURE 3 in A new species of Perinereis Kinberg, 1865 (Annelida: Nereididae) and invalidation of two congeners from Western India
FIGURE 3. Perinereis khambhatiensis sp. nov. from Kamboi, Gujarat, India. A, H–N, atoke holotype (MSUB-ZL-AN-PCh- 01); B–G, atoke paratype (ZSI-WRC ANN/25). A. Whole body in dorsolateral view. B. Anterior region and everted proboscis in dorsal view. C. Everted proboscis in ventral view. D. Paragnaths of areas III and IV, arrows pointing at lateral isolated paragnaths on area III. E. Left jaw in ventral view and right jaw in dorsal view, respectively. F. Close-up of jaw in ventral view, arrow pointing inner canals. G. Paired oesophageal caeca (arrows) in ventral view. H–L. Parapodia in anterior view, numbers refer to the chaetiger. M. Homogomph spiniger from notopodia (chaetiger 45). N. Heterogomph falciger from neuropodial subacicular fascicle (chaetiger 48). Scale bars: A, 7 mm; B, 0.8 mm; C, E, 0.4 mm; D, 0.5 mm; F, 0.2 mm; G, 1 mm; H–L, 200 μm; M, 40 μm; N, 25 μm.
Supplementary material 1 from: Teixeira MAL, Fourreau CJL, Sempere-Valverde J, Carvalho S (2024) Two new records and description of a new Perinereis (Annelida, Nereididae) species for the Saudi Arabian Red Sea region. ZooKeys 1196: 331-354. https://doi.org/10.3897/zookeys.1196.115260
Supplementary data
Figure 2 from: Teixeira MAL, Fourreau CJL, Sempere-Valverde J, Carvalho S (2024) Two new records and description of a new Perinereis (Annelida, Nereididae) species for the Saudi Arabian Red Sea region. ZooKeys 1196: 331-354. https://doi.org/10.3897/zookeys.1196.115260
Figure 2 Perinereis kaustiana sp. nov. All pictures are from the holotype (NTNU-VM-86011) if not stated otherwise A anterior end, prostomium, dorsal view B anterior end, prostomium, ventral view C jaws and respective jaw canals (JC), dorsal view D pharynx, maxillary ring (Areas III and IV), ventral view; black arrows, lateral patches with two paragnaths each E pharynx, oral ring (Areas VI), dorsal view F pharynx, maxillary ring (Areas I and II), dorsal view G pharynx, oral ring (Areas VII–VIII), ventral view; black arrows, furrow regions; white arrows, ridge regions H posterior end; white arrows, pygidial Tentacular cirri, paratype (NTNU-VM-86015) I anterior body, tentacular cirri reaching chaetiger 9, paratype (NTNU-VM-86015) J worm's eyes, right side, paratype (NTNU-VM-86015). Abbreviations: chaet., chaetiger; Pyg., Pygidium. Scale bars: 500 μm (A, B, I); 250 μm (E, F, H); 100 μm (D, G); 125 μm (J); 75 μm (C).
Figure 1 from: Teixeira MAL, Fourreau CJL, Sempere-Valverde J, Carvalho S (2024) Two new records and description of a new Perinereis (Annelida, Nereididae) species for the Saudi Arabian Red Sea region. ZooKeys 1196: 331-354. https://doi.org/10.3897/zookeys.1196.115260
Figure 1 Phylogenetic tree and MOTU distribution for the three sampled Red Sea Perinereis species A maximum likelihood phylogeny based on COI sequences, with information regarding the different MOTU delineation methods. Numbered MOTUs (1–4) contain original sequences from Perinereis specimens analysed in this study; MOTUs "GB" are based on Perinereis sequences mined from GenBank; MOTU "OUTG" correspond to the rooted outgroup, Alitta virens. Bootstrap values lower than 80% not displayed B Red Sea MOTU distribution; each coloured pie corresponds to a unique species and respective abundance proportion; larger pie charts indicate higher number of sympatric species. Species from the Suez Canal based on mined GenBank sequences from Elgetany et al. (2022); abundance proportion based on type material CPerinereis damietta, focus on prostomium and pharynx, dorsal view, specimen NTNU-VM-86031 DPerinereis suezensis, focus on prostomium and pharynx, dorsal view, specimen NTNU-VM-86032 EPerinereis kaustiana sp. nov., focus on prostomium and pharynx, dorsal view, specimen NTNU-VM-86011. Scale bars: 500 μm (C–E).
Figure 3 from: Teixeira MAL, Fourreau CJL, Sempere-Valverde J, Carvalho S (2024) Two new records and description of a new Perinereis (Annelida, Nereididae) species for the Saudi Arabian Red Sea region. ZooKeys 1196: 331-354. https://doi.org/10.3897/zookeys.1196.115260
Figure 3 Perinereis kaustiana sp. nov. Parapodia and types of chaetae. All images are from the holotype (NTNU-VM-86011) A right parapodium, posterior view, chaetiger 9 B right parapodium, posterior view, chaetiger 46 C right parapodium, posterior view, chaetiger 96 D notochaetae: homogomph spiniger with lightly serrated blade, chaetiger 9 E neurochaetae, subacicular fascicle: heterogomph falcigers (centre) and heterogomph spinigers with lightly serrated blade (left), chaetiger 9 F neurochaetae, supra-acicular fascicle: homogomph spiniger with coarsely serrated blade, chaetiger 9 G neurochaetae, subacicular fascicle: heterogomph spiniger with lightly serrated blade, chaetiger 9 H neurochaetae, supra-acicular fascicle: heterogomph falciger, chaetiger 56 I posterior end, focused on chaetiger 97 and chaetiger 98. Abbreviations: DC, Dorsal Tentacular cirri; DL, Dorsal ligule; ML, Median ligule; NA, Neuroacicular ligule; VL, Ventral ligule; VC, Ventral Tentacular cirri. Scale bars: 250 μm (I); 100 μm (A–C); 10 μm (D–H).
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