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51 results for “Neanthes”
Figure 1 in Molecular phylogenetics of the Neanthes acuminata (Annelida: Nereididae) species complex
Figure 1. Maximum-likelihood tree resulting from partitioned analysis of the full concatenated data set in Garli 2.0. Numbers above branches represent ML bootstrap support values; numbers below branches represent posterior probabilities from an unpartitioned Bayesian analysis in MrBayes 3.2.1. Within each dashed box names refer to all populations present within that clade.
Figure 2 in Molecular phylogenetics of the Neanthes acuminata (Annelida: Nereididae) species complex
Figure 2. Maximum-likelihood tree resulting from partitioned analysis of the "all three genes" data set in Garli 2.0. Numbers above branches represent ML bootstrap support values; numbers below branches represent posterior probabilities from an unpartitioned Bayesian analysis in MrBayes 3.2.1
Fig. 4. Neanthes helenae Kinberg, 1865. A–C, I–P in Redescriptions of Neanthes Kinberg, 1865 (Annelida: Errantia: Nereididae) species from worldwide regions
Fig. 4. Neanthes helenae Kinberg, 1865. A–C, I–P. Holotype of Nereis (Neanthes) nanciae Day, 1949 (NHMUK 1950.1.5.72-95) from Jamestown, St Helena Island, atokous. A. Entire body in dorsal view. B. Anterior end in dorsal view.C. Anterior region in ventral view, arrow indicates ventrolateral projection. I. Left parapodium from chaetiger 1 in posterior view. J. Left parapodium from chaetiger 7 in posterior view. K. Right parapodium from chaetiger 21 in anterior view. L. Left parapodium from chaetiger 30 in posterior view with ventral cirri contracted and hidden behind the neuroacicular ligule. M. Right parapodium from chaetiger 60 in anterior view. N. Heterogomph fused falciger from supracicular neurochaetae (chaetiger 30). O. Heterogomph falciger from subacicular neurochaetae (chaetiger 7). P. Heterogomph falciger from subacicular neurochaetae (chaetiger 30). — D–H, Q. Paratype of Nereis (Neanthes) nanciae Day, 1949 (NHMUK 1950.1.5.72-95) from Jamestown, St Helena Island, atokous. D. Anterior region in lateral view, arrow indicates ventrolateral projection. E. Left jaw in dorsal and ventral views, respectively. F. Inner canals of jaws in ventral view. G. Non-everted pharynx in ventral view. H. Area VI of oral ring of non-everted pharynx in ventral view, arrows indicate p-bars. Q. Posterior end in dorsal view. Roman numerals refer to the areas and Arabic numbers to chaetigers. Scale bars: A–C, Q = 1 mm; D–E, G = 0.5 mm; F, J–L = 0.2 mm; H–I, M = 0.1 mm; N–P = 20 µm.
Fig. 5 in Redescriptions of Neanthes Kinberg, 1865 (Annelida: Errantia: Nereididae) species from worldwide regions
Fig. 5. Neanthes mossambica (Day, 1957). Holotype (NHMUK 1961.16.22) from Morrumbene, Mozambique, atokous female. A. Entire body in dorsal view. B. Anterior end in dorsal view. C. Noneverted pharynx in ventral view (arrow indicates p-bar). D. Area VI of non-everted pharynx in ventral view (arrow pointing anteriorly). E. Left parapodium from chaetiger 1 in posterior view. F. Right parapodium from chaetiger 9 in anterior view. G. Left parapodium from chaetiger 21 in posterior view. H. Right parapodium from chaetiger 40 in anterior view. I. Right parapodium from chaetiger 63 in anterior view with ventral cirri contracted and hidden behind the neuroacicular ligule. J. Homogomph spiniger from notochaetae (chaetiger 9). K. Heterogomph spiniger from subacicular neurochaetae (chaetiger 9). L. Heterogomph falciger from supracicular neurochaetae (chaetiger 9). M. Heterogomph falciger from subacicular neurochaetae (chaetiger 9). Roman numerals refer to the areas and Arabic numbers to chaetigers. Scale bars: A = 2 mm; B = 1 mm; C = 0.5 mm; D = 0.1 mm; E–I = 0.2 mm; J–M = 20 µm.
Fig. 1 in Redescriptions of Neanthes Kinberg, 1865 (Annelida: Errantia: Nereididae) species from worldwide regions
Fig. 1. Neanthes chilkaensis (Southern, 1921). Lectotype (NHMUK 1938.5.7.27) from Chilika Lake, Orissa, India, atokous. A. Entire body in dorsal view (inset: approach of pygidium). B. Anterior end in dorsal view. C. Non-everted pharynx in ventral view. D. Dorsum of oral ring of non-everted pharynx in ventral view. E. Left parapodium from chaetiger 2 in posterior view. F. Left parapodium from chaetiger 13 in posterior view. G. Right parapodium from chaetiger 26 in anterior view. H. Right parapodium from chaetiger 38 in anterior view with ventral cirri contracted and hidden behind the neuroacicular ligule. I. Parapodium from chaetiger 52 in anterior view. J. Homogomph spiniger from notochaetae (chaetiger 13). K. Homogomph spiniger from supracicular neurochaetae (chaetiger 13). L. Heterogomph spiniger from subacicular neurochaetae (chaetiger 2). M. Heterogomph falciger from subacicular neurochaetae (chaetiger 13). Roman numerals refer to the areas and Arabic numbers to chaetigers. Scale bars: A = 3 mm; B = 1 mm; C = 0.5 mm; D–I = 0.2 mm; J–M = 20 µm.
Fig. 3. Neanthes helenae Kinberg, 1865. A–B, E–Q in Redescriptions of Neanthes Kinberg, 1865 (Annelida: Errantia: Nereididae) species from worldwide regions
Fig. 3. Neanthes helenae Kinberg, 1865. A–B, E–Q. Complete syntype (SMNH Type-457) from Jamestown, St Helena Island, atokous. C–D. Incomplete syntype (SMNH Type-457) from Jamestown, St Helena Island, atokous. A. Entire body in dorsal view. B. Anterior end in dorsal view. C. Everted pharynx in dorsal view. D. Everted pharynx in ventral view. E. Right parapodium from chaetiger 1 in anterior view with ventral cirri missing. F. Right parapodium from chaetiger 8 in anterior view. G. Right parapodium from chaetiger 27 in anterior view. H. Right parapodium from chaetiger 42 in anterior view with ventral cirri missing. I. Right parapodium from chaetiger 60 in anterior view. J. Homogomph spiniger from notochaetae (chaetiger 27). K. Heterogomph spiniger from subacicular neurochaetae (chaetiger 1). L. Heterogomph falciger from subacicular neurochaetae (chaetiger 1). M. Heterogomph, fused falciger from supracicular neurochaetae (chaetiger 42). N. Heterogomph falciger from supracicular neurochaetae (chaetiger 60). O. Heterogomph falciger from subacicular neurochaetae (chaetiger 13). P. Heterogomph falciger from subacicular neurochaetae (chaetiger 60). Q. Posterior end in dorsal view. A–D, Q: stained with Shirlastain A. Roman numerals refer to the areas and Arabic numbers to chaetigers. Scale bars: A–B = 1 mm; C–D, Q = 0.5 mm; E–I = 0.1 mm; J–P = 20 µm.
Fig. 2. Neanthes galetae Fauchald, 1977. A–B, E–M in Redescriptions of Neanthes Kinberg, 1865 (Annelida: Errantia: Nereididae) species from worldwide regions
Fig. 2. Neanthes galetae Fauchald, 1977. A–B, E–M. Holotype (USNM 53088) from Galeta Reef, Panama, atokous. C–D. Paratype (USNM 53089) from Galeta Reef, Panama, atokous. A. Entire body in dorsal view. B. Anterior end in dorsal view. C. Non-everted pharynx in ventral view, black arrow indicates merged paragnaths. D. Right jaw in dorsal view, white arrow indicates canals. E. Right parapodium from chaetiger 2 in anterior view. F. Right parapodium from chaetiger 8 in anterior view. G. Right parapodium from chaetiger 16 in anterior view. H. Right parapodium from chaetiger 33 in anterior view. I. Right parapodium from chaetiger 47 in anterior view. J. Supracicular (Sp) and subacicular (Sb) neurochaetae (chaetiger 1). K. Homogomph spiniger from supracicular neurochaetae (chaetiger 47). L. Heterogomph falciger from supracicular neurochaetae (chaetiger 47). M. Heterogomph falciger from subacicular neurochaetae (chaetiger 47). Roman numerals refer to the areas and Arabic numbers to chaetigers. Scale bars: A = 0.5 mm; B = 0.2 mm; C–I = 0.1 mm; J = 20 µm; K–M = 10 µm.
Fig. 8 in Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules
Fig. 8. Neanthes goodayi sp. nov., live specimens, in situ images. A. Paratype (NHM_2026), burrowing within nodule crevice. B. Detail of paratype (NHM_2026), in burrow. C. Paratype (NHM_512), burrowing within a foraminiferan growing on nodule. D–E. Detail of paratype (NHM_512), in burrow. F. Detail of paratype (NHM_1624), burrowing within a mudball encrusting the nodule surface. G–H. Details of paratype (NHM_1624), in burrow. Scale bars: 1 cm.
Fig. 6 in Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules
Fig. 6. Neanthes goodayi sp. nov., epitoke paratype (NHM_1783), preserved specimen. A. Entire specimen, dorsal view. B. Extruded pharynx, dorsal view (left), ventral view (right). C. Detail of prenatatory parapodium 4, with modified dorsal and ventral cirri, posterior view. D. Detail of modified natatory swimming parapodium, chaetiger 31, posterior view. E. Detail of papillated dorsal cirrus, chaetiger 31, posterior view. F. Modified swimming spinigers, subacicular neurocheatal fascicle, chaetiger 32. Abbreviations: DC = dorsal cirrus; VC = ventral cirrus. Lobe at base of dorsal cirrus in D and E outlined with a fine white or black line. Parapodium in C dissected from left side of specimen; parapodium in D dissected from right side of specimen, with images D and E laterally inverted to follow direction of other plates. Scale bars: A = 1 mm; B = 500 µm; C–D = 200 µm; E = 100 µm; F = 50 µm.
Fig. 5 in Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules
Fig. 5. Neanthes goodayi sp. nov., juvenile specimens. A. Paratype (1254), entire specimen, dorsal view. B. Paratype (NHM_171) dorsal anterior view. C. Paratype (NHM_127) entire specimen, dorsal view. D. Paratype (NHM_127), close up of dorsal anterior, arrows mark position of anterior eye pair. Scale bars: A, C = 1 mm; B = 500 µm; D = 100 µm.
Fig. 4 in Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules
Fig. 4. Neanthes goodayi sp. nov., paratypes. A. Paratype (NHM_1624), preserved specimen; dorsal anterior view, live image (left); lateral anterior view, preserved specimen (right). B. Paratype (NHM_755); dorsal anterior view, live image (left), preserved specimen (right); arrows marking pigmentation. C. Paratype (NHM_238), dorsal anterior view, arrows mark pigmentation. D. Paratype (NHM_512), dorsal anterior view, arrows mark pigmentation. Scale bars = 1 mm.
Fig. 2 in Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules
Fig. 2. Neanthes goodayi sp. nov., holotype (NHM_739). A. Live image, entire specimen. B. Preserved entire specimen, dorsal view (left), ventral view (right). C. Live image, anterior view, arrows mark pigmentation. D. Preserved specimen, anterior view, arrows mark pigmentation. E. Dissected pharynx, with pharyngeal areas I, II, III, IV, VI, VII–VIII highlighted. Scale bars: B = 1 mm; D = 500 µm; E = 250 µm.
Fig. 3 in Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules
Fig. 3. Neanthes goodayi sp. nov., holotype (NHM_739). A. Chaetiger 1, posterior view. B. Chaetiger 3, posterior view. C. Chaetiger 6, posterior view. D. Chaetiger 20, posterior view. E. Chaetiger 29, posterior view. F. Chaetiger 29, posterior view, detail of neuracicular postchaetal lobe. G. Chaetiger 40, posterior view. H. Chaetiger 46, posterior view. I. Notochaetae, detail of homogomph spinigers, chaetiger 20. J. Supraciular neurochaetae, detail of homogomph spiniger, chaetiger 3. K. Supracicular neurochaetae, detail of heterogomph falciger, chaetiger 10. L. Subacicular neurochaetae, detail of homogomph spiniger (left) and homogomph falciger (right), chaetiger 20. M. Subacicular neurochaetae, detail of heterogomph falcigers, chaetiger 20. Abbreviations: PtL = postchaetal lobe; VC = ventral cirrus. Postchaetal lobe in A–D, F outlined with a fine white line. Parapodia in C, E–H dissected from left side of specimen; parapodia in A–B, D dissected from right side of specimen, with images laterally inverted follow direction of other plates. Scale bars: A–E, G–H = 200 µm; F, I–M = 50 µm.
Fig. 1 in Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules
Fig. 1. Sampling sites, showing occurrences of Neanthes goodayi sp. nov. A. UK-1 Stratum-A study area within the UK Seabed Resources UK-1 exploration contract area. B. UK-1 Stratum-B study area within the UK Seabed Resources UK-1 exploration contract area. C. OMS Stratum-A study area, in the Ocean Mineral Singapore (OMS) polymetallic nodule exploration contract area. D. Area of Particular Environmental Interest APEI-6. Inset map showing location of Clarion-Clipperton Fracture Zone in the Central Eastern Pacific. Bathymetric survey data and sampling localities from the AB01 2013 RV Melville survey cruise (MV1313) and AB02 2015 RV Thomas G. Thompson survey cruise (TN319); data courtesy of Craig R. Smith (University of Hawaii), UK Seabed Resources Ltd. and Seafloor Investigations, LLC.
FIG. 3. — Neanthes pleijeli n in Four new nereidid species (Annelida, Polychaeta) collected during the MUSORSTOM cruises in the Indo-Pacific Ocean
FIG. 3. — Neanthes pleijeli n. sp.; A, anterior region, dorsal view; B, setiger 10, anterior view; C, setiger 35, anterior view; D, neuropodial infracicular heterogomph falciger from anterior parapodium; E, neuropodial supracicular simple seta from mid-posterior parapodia; F, neuropodial infracicular heterogomph falciger from same. Scale bars: A, 1 mm; B, C, 300 µm; D, F, 15 µm; E, 30 µm.
FIG. 2. — Neanthes philippinensis n in Four new nereidid species (Annelida, Polychaeta) collected during the MUSORSTOM cruises in the Indo-Pacific Ocean
FIG. 2. — Neanthes philippinensis n. sp.; A, anterior region, dorsal view; B, setiger 10, anterior view; C, setiger 46, anterior view; D, setiger 65, anterior view; E, neuropodial supracicular heterogomph falciger from anterior parapodia; F, infracicular heterogomph falciger from same; G, neuropodial supracicular heterogomph falciger from mid-anterior parapodia; H, neuropodial infracicular heterogomph falciger from same; I, neuropodial supracicular heterogomph falciger from middle parapodia; J, neuropodial infracicular heterogomph falciger from the same. Scale bars: A, 1 mm; B-D, 250 µm; E-J, 30 µm.
FIGURE 18 in Neanthes (Annelida: Nereididae) from Taiwanese waters, with description of seven new species and one new species record
FIGURE 18. Neanthes sp. 1 (NMNS 7946-035): A, notochaeta, homogomph spiniger, posterior chaetiger; B, neurochaeta of dorsal fascicle, homogomph spiniger, posterior chaetiger; C, neurochaeta of dorsal fascicle, medium heterogomph falciger, posterior chaetiger; D, neurochaeta of ventral fascicle, heterogomph spiniger, posterior chaetiger; E, neurochaeta of ventral fascicle, short heterogomph falciger, chaetiger 10; F, neurochaeta of ventral fascicle, medium heterogomph falciger, posterior chaetiger. Scale: A–F, 0.05 mm.
FIGURE 6. Neanthes jihueiensis n in Neanthes (Annelida: Nereididae) from Taiwanese waters, with description of seven new species and one new species record
FIGURE 6. Neanthes jihueiensis n. sp.; holotype (NMNS 7946-016): A, notochaeta, homogomph spiniger, chaetiger 121; B, neurochaeta of dorsal fascicle, homogomph spiniger, chaetiger 121; C, neurochaeta of dorsal fascicle, medium heterogomph falciger, chaetiger 121; D, neurochaeta of ventral fascicle, heterogomph spiniger, chaetiger 121; E, neurochaeta of dorsal fascicle, medium heterogomph falciger, chaetiger 121. Scale: A–L, 0.05 mm.
FIGURE 14. Neanthes sanguensis n in Neanthes (Annelida: Nereididae) from Taiwanese waters, with description of seven new species and one new species record
FIGURE 14. Neanthes sanguensis n. sp.; holotype (NMNS 1491-003): A, notochaeta, homogomph spiniger, chaetiger 68; I, neurochaeta of dorsal fascicle, homogomph spiniger, chaetiger 68; J, neurochaeta of dorsal fascicle, short heterogomph falciger, chaetiger 68; K, neurochaeta of ventral fascicle, short heterogomph falciger, chaetiger 68. Scale: A–E, 0.05 mm.
FIGURE 5. Neanthes jihueiensis n in Neanthes (Annelida: Nereididae) from Taiwanese waters, with description of seven new species and one new species record
FIGURE 5. Neanthes jihueiensis n. sp.; holotype (NMNS 7946-016): A, whole animal; B, anterior body; C, paragnaths of the pharynx; D, right parapodium, anterior view, chaetiger 10; E, right parapodium, posterior view, chaetiger 10; F, right parapodium, anterior view, chaetiger 121; G, right parapodium, posterior view, chaetiger 121. Scale: A, 10.0 mm; B, 1.0 mm; C–G, 0.5 mm.
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