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8 results for “Asteroschema”
Fig. 8. Asteroschema horridum Lyman, 1879 in New species, redescriptions and new records of deep-sea brittle stars (Echinodermata: Ophiuroidea) from the South China Sea, an integrated morphological and molecular approach
Fig. 8. Asteroschema horridum Lyman, 1879, SEM (IDSSE EEB-SW0005). A–B. Lateral arm plate (external, internal). C. Arm spine. D–H. Vertebrae. D. Proximal view. E. Distal view. F. Ventral view. G. Dorsal view. H. Lateral view. Abbreviations: D = dorsal; Dist = distal; Prox = proximal; mo = muscle opening; no = nerve opening; V = ventral. Scale bars: A–C, F = 300 µm; D–E, G–H = 500 µm.
Fig. 7. Asteroschema horridum Lyman, 1879 in New species, redescriptions and new records of deep-sea brittle stars (Echinodermata: Ophiuroidea) from the South China Sea, an integrated morphological and molecular approach
Fig. 7. Asteroschema horridum Lyman, 1879 (IDSSE EEB-SW0005). A. Dorsal disc. B. Ventral disc. C. Oral frame. D. Lateral disc. E–F. Dorsal arm (proximal and distal regions). G. Ventral arm. H. Lateral arm. I. Ventral arm. J. Ventral arm spine. Abbreviations: ars = arm spine; das = dorsal arm spine; gs = genital slit. Scale bars: A–B, D–I = 2 mm; C = 1 mm; J = 500 µm.
FIGURE 3 in Asteroschema sampadae (Ophiuroidea: Asteroschematinae), a new deep-sea brittle star from the continental slope off the southern tip of India
FIGURE 3. Asteroschema sampadae sp.nov., holotype (CMLRE IO/SS/ECD/00021). A. arm in lateral view, middle of arm showing arm spines (left=dorsal, right=ventral), B. arm in lateral view, distal end of arm (left=dorsal, right=ventral), C. inner arm spine from middle of arm, showing terminal projections on inner edge (arrow), D. outer arm spine from middle of arm, showing terminal projections on inner edge (arrow), E. SEM image of tip of inner arm spine from middle of arm, F. SEM image of outer arm spine from middle of arm spine, G. hook-shaped arm spine from distal end of arm. Abbreviations: IS, inner arm spine; OS, outer arm spine; HS, hooked spines.
FIGURE 2 in Asteroschema sampadae (Ophiuroidea: Asteroschematinae), a new deep-sea brittle star from the continental slope off the southern tip of India
FIGURE 2. Asteroschema sampadae sp. nov., A–C. live specimens, D–F. Holotype (CMLRE IO/SS/ECD/00021). A. entire organism, B. aboral view of disc, C. oral side of disc showing genital slits (arrow), D. holotype (CMLRE) conical epidermal ossicles on the aboral side of the arm (arrows), E. oral side of arm base, showing minute granular epidermal ossicles (arrow), F. conical epidermal ossicle from the aboral side of the arm, with terminal projections (arrow).
FIGURE 4 in Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax
FIGURE 4. Ophiuroid radial shield length (top) and PC1 summarizing overall ophiuroid size(bottom) as a function of octocoral base width. Trendline: LOESS curve with alpha degree of smoothing set to two.
FIGURE 1 in Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax
FIGURE 1. Map of study area with sampling site of 130 octocoral / ophiuroid pairs (station CP5052), and type locality for P. bellona (station CP2557). Sampling depth range is provided below station numbers. Isobaths plotted from 0 to 1500 m depth, in 500 m increments (Pante and Simon-Bouhet, 2013).
FIGURE 3 in Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax
FIGURE 3. Correlogram showing the Spearman correlations among the coral (top 2 lines, left 2 columns) and brittle star (bottom 9 lines, right 9 columns) variables. Lower panel: blue gradient indicating a positive correlation (dark blue meaning high correlation) and red gradient indicating a negative correlation (dark red meaning a strong negative correlation). Diagonal: probability density functions for individual variables. Upper panel: biplots corresponding to each variable pair. Sample sizes: n=10 for lines 1–2, n=52 for lines 3–5 (with data on oral and aboral sides of the ophiuroids, see methods), n=124 for lines 6–10 (with data on aboral side only, see methods).
FIGURE 2 in Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax
FIGURE 2. Maximum likelihood tree based on partial 16S sequences for the genera Asteroschema, Ophiocreas, and Astroceras within the Euryalidae. The alignment contains 35 sequences and is 559 bp long. Support values for each node are ultrafast bootstrap values. Names of A. ajax specimens are bolded.
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