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opennotspecifiedDec 2017View details →

FIGURE 1. A–B in Recent brachiopods from the South China Sea, NW Pacific

FIGURE 1. A–B. Terebratulina japonica (Sowerby, 1846), dorsal views of complete specimens, stn DW 4125, 305–306 m, SEM, MNHN IB-2013-640. C–G. Macandrevia sp., one complete specimen, stn CP 4123, 1612–1665 m, MNHN IB-2013-641. C–D. Dorsal and lateral views of complete specimen. E–F. Ventral valve of the same specimen, posterior part of interior and tilted view to show strong dental plates, SEM. G. Interior view of dorsal valve to show cardinalia, SEM. H–R. Nipponithyris afra Cooper, 1973, stn CP 4130, 795–822 m. H–M. Dorsal, lateral and anterior views of two complete specimens, MNHN BI-2013-642. N–O. Posterior part of ventral valve interior and tilted view to show swollen bases and grooves to accommodate inner socket ridges, SEM, MNHN BI-2013- 643. P. Interior of dorsal valve, partly broken loop visible, SEM, MNHN BI-2013-644. Q–R. Posterior part of dorsal valve interior and enlargement to show details of strongly thickened cardinalia, SEM MNHN BI-2013-645.

FIGURE 4 in Morphological studies and molecular data on a new marine ciliate, Apokeronopsis sinica n. sp. (Ciliophora: Urostylida), from the South China Sea

FIGURE 4. Unmatched sites from SSrRNA gene sequences alignment. Numbers represent the positions of the nucleotides. Missing sites are compensated by gaps (-). Matched sites are marked with dots (.).

FIGURE 3 in Morphological studies and molecular data on a new marine ciliate, Apokeronopsis sinica n. sp. (Ciliophora: Urostylida), from the South China Sea

FIGURE 3. Comparison of Apokeronopsis species. A. crassa (A, B, from Song et al. 2004), A. wrighti (C, D, from Long et al. 2008), A. antarctica (E, F, from Petz 1995), A. ovalis (G, H, from Shao et al. 2009), A. bergeri (I, J, from Li et al. 2008), and A. sinica (K, L, original), to show the morphology of live cells (A, C, E, G, I, K), infraciliature (B, D, F, H, J, L). Scale bars in (A, B, I, J) =100 µm, in (C–H, K, L) = 60 µm.

FIGURE 2 in Morphological studies and molecular data on a new marine ciliate, Apokeronopsis sinica n. sp. (Ciliophora: Urostylida), from the South China Sea

FIGURE 2. Photomicrographs of Apokeronopsis sinica n. sp. from live cells (A–E, I, J) and after protargol impregnation (K–O), and ventral views of live cells of A. crassa (F), A. bergeri (G) and A. wrighti (H). (A) Ventral view of the typical specimen. (B) Ventral view, showing the contractile vacuole (arrow). (C) Lateral view. (D) Ventral view of the anterior portion, arrows indicate the cilia of adoral zone of membranelles, arrowheads mark the paroral membranes and double-arrowheads depict the buccal cirri. (E) Lateral view to show the large cortical granules distributed on dorsal side. (I) Ventral view, to show the cortical granules: vermeil large (arrows), colorless large (arrowheads) and colorless small ones (double-arrowheads). (J) Ventral view, showing the cortical granules between the cirri rows. (K) infraciliature of the ventral side of a typical specimen. (L) Ventral view of the anterior portion, arrow indicates the paroral membrane and arrowhead marks the endoral membrane. (M) Ventral view of the anterior-right portion, arrowheads refer to frontoterminal cirri, and arrows show the buccal cirri. (N) Macronuclear nodules. (O) Ventral view of the posterior portion, note the transverse cirri (arrows). Scale bars in (A, B, C, F, G, H) = 100 µm, in (K) = 80 µm.

FIGURE 1. Apokeronopsis sinica n in Morphological studies and molecular data on a new marine ciliate, Apokeronopsis sinica n. sp. (Ciliophora: Urostylida), from the South China Sea

FIGURE 1. Apokeronopsis sinica n. sp. from live cells (A–D) and after protargol impregnation (E–F). (A, B) Ventral views of two typical specimens. (C) Dorsal view; to show the sparsely distributed large granules. (D) Details of the cortex, double-arrowheads indicate the smaller cortical granules, arrows mark the vermeil larger ones and arrowheads mark the colorless larger ones. (E, F) Ventral and dorsal views of the infraciliature and nuclear apparatus. AZM = adoral zone of membranelles; BC = buccal cirri; BiC = bicoronal cirri; DK = dorsal kineties; EM = endoral membrane; FTC = frontoterminal cirri; LMR = left marginal row; Ma = macronuclei; MC = midventral complex; PM = paroral membrane; RMR = right marginal row; TC = transverse cirri. Scale bars = 80 µm.

Figure 2 in Morphology and molecular phylogeny of three new oligotrich ciliates (Protozoa, Ciliophora) from the South China Sea

Figure 2. Parallelostrombidium ellipticum sp. nov. from life (A–F, J–R) and after protargol impregnation (G–I, S–Y). A, J, ventral views of typical specimen. B, L, dorsal views, arrowhead marks the extrosomes. C, P, detail views of the polygonal platelets. D, resting extrusomes. E, swimming trace. F, K, fat individual. G, pattern of somatic ciliature. H, I, ventral (H) and dorsal (I) views showing the ciliary pattern and the macronucleus. M, Q, apical views, arrows mark the thigmotactic membranelles. N, ventral view of anterior portion of cell, arrow marks the apical protrusion. O, detail of extrusomes attached above the girdle kinety, arrowheads mark the cilia of girdle kinety. R, S, posterior portion of cell, showing the distribution of extrusomes (arrowheads). T, detail view of the dikinetids in girdle kinety. U, Y, right lateral views to show the posterior portion of ventral and girdle kineties. V, ventral view showing the somatic kineties and the macronucleus. W, ventral views of anterior cell portion, to show the adoral zone of membranelles. X, detail of the oral primordium (arrow) in the early stage dividers. AM, anterior membranelles; E, extrusomes; EM, endoral membrane; GK, girdle kinety; Ma, macronucleus; TM, thigmotactic membranelles; VK, ventral kinety; VM, ventral membranelles. Scale bars: 100 μm (E); 30 μm (A, B, F–M, Q); 20 μm (N, R, S, U–W); 5 μm (C, D, O, P, T, X, Y).

Figure 4 in Morphology and molecular phylogeny of three new oligotrich ciliates (Protozoa, Ciliophora) from the South China Sea

Figure 4. Maximum likelihood (ML) tree inferred from small subunit (SSU) rRNA gene sequences indicating the phylogenetic positions of Parallelostrombidium obesum, Parallelostrombidium ellipticum, and Strombidium tropicum (orange dots). Numbers at the nodes represent support values in the following order: ML bootstrap values and Bayesian inference (BI) posterior probabilities. Nodes absent from one of the two phylogenies are indicated by a hyphen. The scale bar indicates the number of substitutions per ten nucleotides.

Figure 1 in Morphology and molecular phylogeny of three new oligotrich ciliates (Protozoa, Ciliophora) from the South China Sea

Figure 1. Parallelostrombidium obesum sp. nov. from life (A–E, I–R) and after protargol impregnation (F–H, S–V). A, ventral view of typical specimen. B, I, J, different body shapes, arrow marks the apical protrusion. C, swimming trace. D, P, pattern of cortical platelets. E, O, Q, detail of extrusomes attached above the girdle kinety. F, pattern of somatic ciliature. G, H, ventral (G) and dorsal (H) views of the same specimens showing the ciliary pattern and the macronucleus. K, lateral view. L, N, ventral (L) and dorsal (N) views showing the distribution of extrusomes (arrowheads). M, two thigmotactic membranelles. R, detail of bases of thigmotactic membranelles (arrows). S, V, ventral views of anterior portion of cell showing oral membranelles. T, U, dorsal (T) and ventral (U) views showing the girdle and ventral kineties. AM, anterior membranelles; E, extrusomes; EM, endoral membrane; GK, girdle kinety; Ma, macronucleus; TM, thigmotactic membranelles; VK, ventral kinety; VM, ventral membranelles. Scale bars: 120 μm (C); 40 μm (A, B, F–K); 20 μm (L–N, S–V); 10 μm (D, E, O–R).

Figure 3 in Morphology and molecular phylogeny of three new oligotrich ciliates (Protozoa, Ciliophora) from the South China Sea

Figure 3. Strombidium tropicum sp. nov. from life (A–D, J–P) and after protargol impregnation (E–I, Q–V). A, ventral view of a representative specimen. B, J–L, different body shapes, arrow marks the apical protrusion. C, P, resting extrusomes. D, swimming trace. E, detail of dikinetids, arrow and arrowhead mark the argyrophilic fibres associated with dikinetids in girdle and ventral kineties, respectively. F, detail of ventral membranelles and argyrophilic fibres. G–I, ventral (G, H) and dorsal (I) views showing the ciliary pattern and the macronucleus, arrow marks the argyrophilic fibres associated with adoral membranellar zone and arrowhead notes the pharyngeal fibres. M, ventral view of a mid-divider, arrow shows the oral primordium. N, apical view showing the adoral zone of membranelles. O, dorsal view showing the distribution of extrusomes (arrow). Q, the macronucleus. R, U, ventral views of adoral zone of membranelles, arrow marks the argyrophilic fibres. S, V, ventral and dorsal views of posterior portion of cells to show the infraciliature, arrow marks the extrosomes and arrowhead notes the hemitheca. T, detail of girdle kinety, arrow shows the argyrophilic fibres and arrowhead marks the cilium. AM, anterior membranelles; E, extrusomes; EM, endoral membrane; GK, girdle kinety; Ma, macronucleus; VK, ventral kinety; VM, ventral membranelles. Scale bars: 50 μm (D); 10 μm (A, B, G–L, N, O, Q), 5 μm (C, F, M, P, R, S, U, V), 2 μm (E, T).

opencc-by-4.0Nov 2023View details →

Annual-resolution Sr/Ca records of fossil Porites corals from the northern South China Sea

<p>This dataset reports thirteen annual-resolution Sr/Ca records and seven 10-yr resolution Sr/Ca records of a total of 20 fossil <i>Porites </i>corals collected from the northern South China Sea. The ages of the fossil corals were determined by U-Th geochemistry. The Sr/Ca measurements were carried out using an Inductively Coupled Plasma-optical emission spectroscopy (ICP-OES; Agilent 5110). The international coral standard JCp-1 was measured along with the samples, yielding an average value of 8.839 ± 0.017 mmol/mol (1 SD, n = 36).</p>

FIGURE 5 in A new species of the coral-symbiont crab genus Cymo de Haan, 1833 (Decapoda, Brachyura, Xanthidae) from Nansha Islands, the South China Sea

FIGURE 5. Diagnostic features of Cymo: A, F, K, P, C. mazu sp. nov.; B, G, L, Q, C. deplanatus; C, H, M, R, C. quadrilobatus; D, I, N, S, C. andreossyi; E, J, O, T, C. melanodactylus; A–E, overall morphology and live coloration; F–G, front; K–O, major cheliped; P–T, maxilliped 1. Scale bars: A, J, L, M = 2 mm; B–D, N, O = 5 mm; E = 10 mm; F, P = 0.5 mm; G–I, K, Q–T = 1 mm.

FIGURE 3 in A new species of the coral-symbiont crab genus Cymo de Haan, 1833 (Decapoda, Brachyura, Xanthidae) from Nansha Islands, the South China Sea

FIGURE 3. Cymo mazu sp. nov., holotype, male, CW 4.1 mm, CL 3.8 mm, MBM287035: A, carapace; B, front; C, maxilliped 1; D, maxilliped 3; E, pereopod 5; F, large cheliped; G, pleon; H, left G1, ventral view; I, left G1, distal part, ventral view; J, same, dorsal view; K, right G2, ventral view. Scale bar A, E, F = 1 mm, C, D, G = 0.5 mm, H = 0.2 mm, I–K = 0.1 mm.

FIGURE 4 in A new species of the coral-symbiont crab genus Cymo de Haan, 1833 (Decapoda, Brachyura, Xanthidae) from Nansha Islands, the South China Sea

FIGURE 4. Phylogenetic relationships among five species of Cymo based on COI sequences. The BI tree with posterior probabilities and ML bootstrap values labeled (PP/BS).

FIGURE 1 in A new species of the coral-symbiont crab genus Cymo de Haan, 1833 (Decapoda, Brachyura, Xanthidae) from Nansha Islands, the South China Sea

FIGURE 1. Colour in life, Cymo mazu sp. nov., holotype, male, CW 4.1 mm, CL 3.8 mm, MBM287035. Scale bar = 2 mm.

FIGURE 2 in A new species of the coral-symbiont crab genus Cymo de Haan, 1833 (Decapoda, Brachyura, Xanthidae) from Nansha Islands, the South China Sea

FIGURE 2. Cymo mazu sp. nov., holotype, male, CW 4.1 mm, CL 3.8 mm, MBM287035: A, dorsal habitus; B, carapace; C, frontal view; D, thoracic sternites and pleon; E, chelipeds. Scale bar A–C = 2 mm, D–E = 1 mm.

FIGURE 12 in Three new species of Paratanaoidea (Crustacea, Tanaidacea) from the South China Sea

FIGURE 12. Paranesotanais incisus sp. nov. Holotype (NMNS8568-05), female: A, left mandible; B, right mandible; C, right mandible incisor; D, labium; E, maxillule endite; F, maxilliped; G, maxilliped endite; I, right cheliped; J, right cheliped propodus and dactylus inner view. Allotype (NMNS8568-06), male: H, maxilliped.

FIGURE 1 in Three new species of Paratanaoidea (Crustacea, Tanaidacea) from the South China Sea

FIGURE 1. Map of the South China Sea. The star symbols show the three collection sites and the present species: 1) Alloleptochelia falciformes sp. nov.; 2) Kalloleptochelia multiarticulata sp. nov.; 3) Paranesotanais incisus sp. nov..

FIGURE 5 in Three new species of Paratanaoidea (Crustacea, Tanaidacea) from the South China Sea

FIGURE 5. Alloleptochelia falciformes sp. nov. Holotype (NMNS8568-01), female: A–C, right pereopods 4–6; D, right pleopod-1 (all setae circumplumose, setules omitted); E, right uropod.

FIGURE 9 in Three new species of Paratanaoidea (Crustacea, Tanaidacea) from the South China Sea

FIGURE 9. Kalloleptochelia multiarticulata sp. nov. Holotype (MBM287539), male: A, right pereopods 4–6; D, right pleopod- 3 (all setae circumplumose, setules omitted); E, right uropod.

FIGURE 4 in Three new species of Paratanaoidea (Crustacea, Tanaidacea) from the South China Sea

FIGURE 4. Alloleptochelia falciformes sp. nov. Holotype (NMNS8568-01), female: A, labium; B, maxillule; C, maxilliped; D, maxilliped endite; E, left cheliped; F–H, right pereopods 1–3.