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365 results for “Nereididae”
FIGURE 3. Nereis coutieiri, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 3. Nereis coutieiri, A, anterior end, dorsal view; B, anterior parapodium; C, mid-body parapodium; D, posterior parapodium; E, notopodial homogomph falciger, posterior parapodium; F, neuropodial heterogomph falciger, anterior 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 2 in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 2. Dorsal views of anterior end of selected nereidid species collected from the intertidal of Gulf of Oman, A, Nereis coutieri, body width about 1 mm; B, Perinereis heterodonta, body width about 2.5 mm; C, Perinereis horsti, pharynx everted, body width about 2 mm; D, Perinereis nuntia, pharynx everted, body width about 3 mm; E, Pseudonereis trimaculata, pharynx everted; body width about 2 mm.
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 2. Namalycastis occulta n in Namalycastis occulta n. sp. and a new record of N. borealis (Polychaeta: Nereididae: Namanereidinae) from the Northwestern Caribbean Sea
FIGURE 2. Namalycastis occulta n. sp. A. Entire, incomplete specimen, dorsal view, arrow indicates first oocyte. B. Oocytes from posterior chaetigers. C. Chaetiger from mid body, cross-ection (in: intestine, oc: oocyte). A, from specimen ECOSUR P- 2650; B–C, from specimen ECOSUR P-2650. Scale bars: A, 0.5 mm; B,C, 0.1 mm.
FIGURE 3. Namalycastis borealis Glasby, 1999. A. Anterior end, dorsal view. B. Posterior end, dorsal view. C. Chaetiger 3, frontal view. D. Chaetiger 32, frontal view. E. Chaetiger 47, frontal view. F. Jaw, dorsal view. G in Namalycastis occulta n. sp. and a new record of N. borealis (Polychaeta: Nereididae: Namanereidinae) from the Northwestern Caribbean Sea
FIGURE 3. Namalycastis borealis Glasby, 1999. A. Anterior end, dorsal view. B. Posterior end, dorsal view. C. Chaetiger 3, frontal view. D. Chaetiger 32, frontal view. E. Chaetiger 47, frontal view. F. Jaw, dorsal view. G. Supra-acicular heterogomph falciger, chaetiger 47. H. Sub-acicular heterogomph falciger, chaetiger 47. I. Sub-acicular heterogomph spiniger, chaetiger 47. J. Supra-acicular sesquigomph spiniger, chaetiger 47. A, C–J. from specimen ECOSUR P-0000; B. from specimen ECOSUR P-0000. Scale bars: A, B, 0.5 mm; C, D, E, F, 0.15 mm; G, H, I, J, 0.01 mm.
FIGURE 1. Namalycastis occulta n in Namalycastis occulta n. sp. and a new record of N. borealis (Polychaeta: Nereididae: Namanereidinae) from the Northwestern Caribbean Sea
FIGURE 1. Namalycastis occulta n. sp. A. Anterior end, dorsal view (insert: close-up of antennae). B. Posterior end, dorsal view. C. Jaw, dorsal view (insert: tip of jaw, frontal view). D. Chaetiger 3, right parapodium, frontal view. E. Chaetiger 36, right parapodium, frontal view. F. Chaetiger 88, right parapodium, frontal view. G. Supra-acicular heterogomph falciger, chaetiger 36. H. Sub-acicular heterogomph falciger, chaetiger 36. I. Sub-acicular heterogomph falciger, chaetiger 3 (insert: distal tip). J. Sub-acicular heterogomph spiniger, chaetiger 36 (insert: blade tip). K. Supra-acicular sesquigomph spiniger, chaetiger 36. A– B, D–K. from holotype ECOSUR P-0151; C. from paratype ECOSUR P-0152. Scale bars: A, B, 0.25 mm; C,D,E,F, 0.05 mm; G,H, I, J, K, 0.01 mm.
FIGURE 6. A in Nereididae (Annelida: Phyllodocida) of Lizard Island, Great Barrier Reef, Australia
FIGURE 6. A. Solomononereis 'silver_gut_NTM W18461' AM W.43849, alive, dorsal view; B. Websterinereis foli NTM W22621, preserved, antero-dorsal view, pharynx everted; C. W. foli NTM W22621, preserved, antero-ventral view, pharynx everted; D. Nereididae, undetermined, alive, mature male, dorsal view. Photo: Alexander Semenov (A, D). Approximate body widths: A: 1.0 mm; B, C: 0.5 mm; D: unknown.
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 4. A. Nereis trifasciata NTM W22730 in Nereididae (Annelida: Phyllodocida) of Lizard Island, Great Barrier Reef, Australia
FIGURE 4. A. Nereis trifasciata NTM W22730, preserved, antero-dorsal view, pharynx everted; B. N. trifasciata NTM W22730, preserved, antero-ventral view, pharynx everted; C. N. 'lizard_NTM W23960' AM W.43850, alive, dorsal view; D. N. 'mixed_paragnaths_NTM W22634' NTM W22634, Heron Island, preserved, antero-dorsal view, pharynx everted; E. N. 'mixed paragnaths_NTM W22634' NTM W22634, Heron Island, preserved, antero-ventral view, pharynx everted; F. Perinereis nuntia species group AM W.44302, alive, dorsal view; G. P. pictilis AM W.43803, alive, dorsal view; H. P. pictilis alive, close up of AM W.43803, antero-dorsal view. Photo: Alexander Semenov (C, F–H). Approximate body widths: A, B: 2.2 mm; C: 1.0 mm; D, E: 1.7 mm; F: 3.0 mm; G, H: 2.1 mm.
FIGURE 2. A. Composetia marmorata NTM W22530 in Nereididae (Annelida: Phyllodocida) of Lizard Island, Great Barrier Reef, Australia
FIGURE 2. A. Composetia marmorata NTM W22530, preserved, antero-ventral view, pharynx everted; B. Leonnates crosnieri NTM W23992, preserved, dorsal view; C. L. nipponicus NTM W23962, preserved, dorsal view; D. Micronereis bansei NTM W22659, alive, dorsal view; E. Neanthes pachychaeta NTM W22800, preserved, antero-dorsal view; F. Nereis cf. cirriseta NTM W22523, alive, antero-dorsal view; G. N. cf. cirriseta NTM W22523, preserved, antero-dorsal view, pharynx everted; H. N. cf. cirriseta NTM W22523, preserved, antero-ventral view, pharynx everted. Approximate body widths: A: 2.6 mm; B, C: 5.0 mm; D: 0.4 mm; E: 4.0 mm; F–H: 0.9 mm.
FIGURE 3. A in Nereididae (Annelida: Phyllodocida) of Lizard Island, Great Barrier Reef, Australia
FIGURE 3. A. Nereis cf. coutieri AM W.43784, alive, lateral view; B. N. cf. coutieri AM W.43832, alive, fluorescence image at 510–540 nm using DsRed fluorophore barrier filter, dorsal view; C. N. cf. coutieri NTM W22570, preserved, antero-dorsal view; D. N. lizardensis AM W.43798, alive, immature, dorsal view; E. N. lizardensis AM W.44498, alive, fluorescence image at 510–540 nm using DsRed fluorophore barrier filter, dorsal view; F. N. lizardensis AM W.44506, alive, mature male, dorsal view; G. N. lizardensis AM W.44505, alive, mature female, dorsal view; H. N. trifasciata AM W.43814, alive, dorsal view. Photo: Alexander Semenov (A, D, F–H). Approximate body widths: A: 0.8 mm; B: 0.7 mm; C: 0.3 mm; D: 0.9 mm; E: 1.0 mm; F: 2.3 mm; G: 2.4 mm; H: 2.0 mm.
FIGURE 1. A in Nereididae (Annelida: Phyllodocida) of Lizard Island, Great Barrier Reef, Australia
FIGURE 1. A. Ceratonereis australis AM W.44315, alive, antero-dorsal view; B. C. perkinsi AM W.44320, alive, dorsal view; C. C. tentaculata AM W.44314, alive, dorsal view; D. C. tentaculata NTM W22558, preserved, antero-dorsal view; E. C. tentaculata NTM W22558, preserved, antero-ventral view; F. C. 'multistripe AM W.47563' AM W.47563, alive, antero-dorsal view; G. Composetia marmorata NTM W22530, alive, antero-dorsal view; H. C. marmorata NTM W22530, preserved, anterodorsal view, pharynx everted. Photo: Alexander Semenov (A–C, F). Approximate body widths: A: 1.2 mm; B: 1.8 mm; C: 1.9 mm; D, E: 2.0 mm; F: 1.4 mm; G, H: 2.6 mm.
FIGURE 3. Nereis alacranensis n in Nereis alacranensis, a new species of polychaete (Annelida, Nereididae) from Alacranes Reef, southern Gulf of Mexico, with a key to Nereis from the Grand Caribbean
FIGURE 3. Nereis alacranensis n. sp. (Paratype). (A) Peristomium, ventral view. (B) Close-up of the peristomial ventral plate, on external side of peristomium. Nereis baolingi de León-González & Solís-Weiss, 2000 (Paratype). (C) Homogomph falciger. (D) Anterior end, dorsal view. (E) Anterior end, ventral view. (F) Jaws. Scale: A = 200 µm; B = 20 µm; C = 15 µm; D–E = 1 mm; F = 0.5 mm.
FIGURE 2. Nereis alacranensis n in Nereis alacranensis, a new species of polychaete (Annelida, Nereididae) from Alacranes Reef, southern Gulf of Mexico, with a key to Nereis from the Grand Caribbean
FIGURE 2. Nereis alacranensis n. sp. (A) Anterior end, dorsal view. (B) Anterior end, ventral view (arrow shows the peristomial ventral plate, arc shaped). (C) Notochaetae, homogomph spinigers. (D) Parapodia 1–2. (E) and (F) Homogomph falcigers. (G) Parapodium 10. (H) Neurochaetae, dorsal heterogomph falcigers. (I) Ventral heterogomph falcigers. (A, B, F: Holotype; C, D, E, G, H, I: Paratype. Scale: A–B = 0.7 mm; C = 40 µm; D,G = 100 µm; E,F,H,I = 10 µm.
FIGURE 1. Nereis alacranensis n in Nereis alacranensis, a new species of polychaete (Annelida, Nereididae) from Alacranes Reef, southern Gulf of Mexico, with a key to Nereis from the Grand Caribbean
FIGURE 1. Nereis alacranensis n. sp. (Holotype). (A) Anterior end, dorsal view. (B) Anterior end, ventral view (arrow shows the peristomial ventral plate, arc shaped). (C) Pygidium. (D) Parapodium 1. (E) Parapodium 10. (F) Parapodium 25. (G) Parapodium 50. Scale: A–B = 0.8 mm; C = 1 mm; D = 0.6 mm; E = 0.8 mm; F–G = 0.5 mm.
FIGURE 2 in Redescription of Alitta succinea (Leuckart, 1847) and reinstatement of A. acutifolia (Ehlers, 1901) n. comb. based upon morphological and molecular data (Polychaeta: Nereididae)
FIGURE 2. Parapodial structures of atokous and epitokous of Alitta succinea (Leuckart, 1847) from Western Germany. Atokous (ECOSUR-P2729): A, chaetiger 1, AV; B, chaetiger 3, AV; C, chaetiger 10, AV; D, chaetiger 54, AV; E, chaetiger 84, AV; F, chaetiger 95, AV; G, heterogomph falciger, upper fascicle, chaetiger 54; H, heterogomph falciger, lower fascicle, chaetiger 54; I, heterogomph spiniger, chaetiger 10. Epitokous male (ECOSUR-OH-P740): J, chaetiger 15, AV. Epitokous female (ECOSUR-OH-P2729): K, chaetiger 16, AV. Arrows in "D, E, K", tip of neuropodial postchaetal lobe. Scale bars: A−F, J, K: 200 µm; G−I: 20 µm. AL, neuroacicular ligule; DC, dorsal cirrus; DL, dorsal ligule; DLu, upper lamella of dorsal ligule; DLl, lower lamella of dorsal ligule; Gl, glandular structures; IL, inferior lobe; ML, median ligule (or notopodial ventral ligule); NoA, notoaciculae; NeA, neuroaciculae; Prl, notopodial prechaetal lobe; Ptl, neuropodial postchaetal lobe; Spm, sperm; VC, ventral cirrus; VCu, upper lamella of ventral cirrus; VCl, lower lamella of ventral cirrus; VL, ventral ligule. AV, anterior view (text in leyend).
FIGURE 3 in Redescription of Alitta succinea (Leuckart, 1847) and reinstatement of A. acutifolia (Ehlers, 1901) n. comb. based upon morphological and molecular data (Polychaeta: Nereididae)
FIGURE 3. Parapodial structures of Alitta acutifolia (Ehlers, 1901). Atokous specimen from Puntarenas, Costa Rica (ECOSUR-OH-P710): A, chaetiger 1, AV; B, chaetiger 3, AV; C, chaetiger 10, AV; D, chaetiger 37, AV; E, chaetiger 54, AV; F, chaetiger 59, AV; G) heterogomph falciger, lower fascicle, chaetiger 3; H) heterogomph spiniger, chaetiger 54; I) notopodial homogomph spiniger, chaetiger 10. Epitokous male from Mazatlán, Sinaloa (ECOSUR-P2733): J, paddle chaetae, chaetiger 15; K, same chaetiger, AV. Epitokous female from Mazatlán, Sinaloa (ECOSUR-P2733): L, chaetiger 10, AV. White arrows in "D, L", tip of neuropodial postchaetal lobe; grey arrow in "L", rounded papilla-like in the basis of median ligule. Scale bars: A−F, K, L: 200 µm; G−J: 20 µm. AV, anterior view.
FIGURE 1 in Redescription of Alitta succinea (Leuckart, 1847) and reinstatement of A. acutifolia (Ehlers, 1901) n. comb. based upon morphological and molecular data (Polychaeta: Nereididae)
FIGURE 1. Prostomial and pharyngeal structures of atokous specimens. Alitta succinea (ECOSUR-P2729): A, dorsal view; B, ventral view; C, lateral view. Alitta acutifolia without paragnaths on plate-like basement (ECOSUR-P2734): D, dorsal view; E, ventral view; F, lateral view. Alitta acutifolia with paragnaths on plate-like basement (ECOSUR-P2734): G, dorsal view; H, ventral view; I, lateral view. Arrows show the triangular fleshly pads between regions VI and VII−VIII; without paragnaths in A. succinea. Scale bars: A−C: 1 mm; D−I: 0.5 mm. cn, conical paragnath; pb, pointed bar paragnath; pp, pyramidal paragnath.
FIGURE 3. Jaw piece dissected from Namanereis hummelincki USNM 1283368 in A new record of the freshwater polychaete Namanereis hummelincki (Polychaeta: Nereididae) from epigean waters of Montserrat
FIGURE 3. Jaw piece dissected from Namanereis hummelincki USNM 1283368, ventromedial view. (Note the protrusion slightly proximal to the jaw's terminal bifurcation.)
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.