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105 results for “ophiuroids”
FIGURE 15 in Ophiuroids (Echinodermata; Ophiuroidea) of biogenic habitats on the continental shelf of New Zealand
FIGURE 15. Macrophiothrix oliveri (Benham, 1911) (NIWA 55683, TAN0906/99) showing live colour, a: dorsal, b: ventral; Scale bar = 1 mm.
FIGURE 8. Ophiactis resiliens Lyman, 1879 showing live colour, a in Ophiuroids (Echinodermata; Ophiuroidea) of biogenic habitats on the continental shelf of New Zealand
FIGURE 8. Ophiactis resiliens Lyman, 1879 showing live colour, a: dorsal and b: ventral side of NIWA 55684, TAN0906/99; a, c (juvenile, NIWA 55686, TAN0906/99) and d (NIWA 54486, TAN0906/3) show some of the variation in dorsal disc patterning. Scale bars = 1 mm.
FIGURE 7 in Ophiuroids (Echinodermata; Ophiuroidea) of biogenic habitats on the continental shelf of New Zealand
FIGURE 7. Seafloor fields of Ophiacantha otagoensis Fell, 1958 from Seamount 6, Macquarie Ridge (TAN0803/64, DTIS camera).
FIGURE 4 in Ophiuroids (Echinodermata; Ophiuroidea) of biogenic habitats on the continental shelf of New Zealand
FIGURE 4. Proximal arm segments from two morphological variations of Astroceras elegans (Bell, 1917) specimens treated with bleach to expose arm plates. a: NIWA 56499, TAN0906/154, morph 2, dd=10.4 mm; b: NIWA 57061, TAN0906/178, morph 1, cf. A. maui McKnight, 1968, dd=9.24 mm. Scale bar =1 mm, g = spiny granule, as = arm spine, lap = laterally placed arm plates.
FIGURE 1 in Revision of some ophiuroid records (Echinodermata: Ophiuroidea) from Argentina
FIGURE 1. Graphs of Analysis of Covariance of arm number (A) and arm spine number (B, C) of MACN specimens of "Ophiacantha vivipara" from the Patagonian Shelf (n=59), South Georgia (n=26, fig. 1C only) and South Shetland/Sandwich Islands (n=26). All analyses were significant, i.e. arm number and arm spine number differed between populations when disc diameter was incorporated as a covariate.
FIGURE 2. Amphioplus lucyae. A in Revision of some ophiuroid records (Echinodermata: Ophiuroidea) from Argentina
FIGURE 2. Amphioplus lucyae. A: MACN 27862 (holotype of Amphilepis sanmatiensis), 2.7 mm d.d., general view of aboral (left) and oral (right) sides; B: MACN 27862, detailed view of the mouth; C: MACN 28152, 3.4 mm d.d., general view of aboral (left) and oral (right) sides; B: MACN 28152, detailed view of the mouth; E: MACN 28152, 6.0 mm d.d., general view of aboral (left) and oral (right) sides; B: MACN 28152, detailed view of the mouth. White scale bar = 5 mm, black = 1 mm.
FIGURE 2 in Shallow-water reef ophiuroids (Echinodermata: Ophiuroidea) of Réunion (Mascarene Islands), with biogeographic considerations
FIGURE 2. Pictures of species encountered in Réunion Island waters. Pictures were taken of freshly collected specimens except when indicated. Photo credit: BIOTAS.
FIGURE 4 in Shallow-water reef ophiuroids (Echinodermata: Ophiuroidea) of Réunion (Mascarene Islands), with biogeographic considerations
FIGURE 4. Pictures of species encountered in Réunion Island waters. Pictures were taken of freshly collected specimens except when indicated. Photo credit: BIOTAS.
FIGURE 5 in Shallow-water reef ophiuroids (Echinodermata: Ophiuroidea) of Réunion (Mascarene Islands), with biogeographic considerations
FIGURE 5. Pictures of species encountered in Réunion Island waters. Pictures were taken of freshly collected specimens except when indicated. Photo credit: BIOTAS.
FIGURE 3 in Shallow-water reef ophiuroids (Echinodermata: Ophiuroidea) of Réunion (Mascarene Islands), with biogeographic considerations
FIGURE 3. Pictures of species encountered in Réunion Island waters. Pictures were taken of freshly collected specimens except when indicated. Photo credit: BIOTAS.
FIGURE 25 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 25. Lateral arm plates (LAPs) in external (a) and internal (b) views. Ophioplinthus brevirima, 1: proximal LAPs; 2: median LAPs; 3: distal LAPs. Ophioplinthus gelida, 4: proximal LAPs; 5: median LAPs; 6: distal LAPs. Ophioplinthus martensi, 7: proximal LAPs; 8: median LAPs; 9: distal LAPs.
FIGURE 18 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 18. Lateral arm plates (LAPs) in external (a) and internal (b) views. Ophiopleura borealis, 1: proximal LAPs; 2: median LAPs; 3: distal LAPs. Ophiura albida, 4: proximal LAPs; 5: median LAPs; 6: distal LAPs. Ophiura ophiura, 7: proximal LAPs; 8: median LAPs; 9: distal LAPs.
FIGURE 17 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 17. Lateral arm plates (LAPs) in external (a) and internal (b) views. Ophionotus hexactis, 1: proximal LAPs; 2: median LAPs; 3: distal LAPs. Ophionotus victoriae, 4: proximal LAPs; 5: median LAPs; 6: distal LAPs. Ophiosparte gigas, 7: proximal LAPs; 8: median LAPs; 9: distal LAPs.
FIGURE 14 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 14. Lateral arm plates (LAPs) in external (a) and internal (b) views. Ophiactis abyssicola, 1: proximal LAPs; 2: median LAPs; 3: distal LAPs. Ophiactis asperula, 4: proximal LAPs; 5: median LAPs; 6: distal LAPs. Ophiactis balli, 7: proximal LAPs; 8: median LAPs; 9: distal LAPs.
FIGURE 13 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 13. Lateral arm plates (LAPs) in external (a) and internal (b) views. Ophiopholis aculeata, 1: proximal LAPs; 2: median LAPs; 3: distal LAPs. Ophiothrix fragilis, 4: proximal LAPs; 5: median LAPs; 6: distal LAPs. Ophiothrix rudis, 7: proximal LAPs; 8: median LAPs; 9: distal LAPs.
FIGURE 16 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 16. Lateral arm plates (LAPs) in external (a) and internal (b) views. Ophiura robusta, 1: proximal LAPs; 2: median LAPs; 3: distal LAPs. Stegophiura nodosa, 4: proximal LAPs; 5: median LAPs; 6: distal LAPs. Ophiura ljungmani, 7: proximal LAPs; 8: median LAPs; 9: distal LAPs.
FIGURE 10 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 10. Lateral arm plates (LAPs) in external (a) and internal (b) views. Ophiacantha anomala, 1: proximal LAPs; 2: median LAPs; 3: distal LAPs. Ophiacantha vivipara, 4: proximal LAPs; 5: median LAPs; 6: distal LAPs. Ophiocomina nigra, 7: proximal LAPs; 8: median LAPs; 9: distal LAPs.
FIGURE 12 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 12. Lateral arm plates (LAPs) in external (a) and internal (b) views. Amphiura chiajei, 1: proximal LAPs; 2: median LAPs; 3: distal LAPs. Amphiura filiformis, 4: proximal LAPs; 5: median LAPs; 6: distal LAPs. Amphiura sundevalli, 7: proximal LAPs; 8: median LAPs; 9: distal LAPs.
FIGURE 8 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 8. Lateral arm plates (LAPs) in external (a) and internal (b) views. Ophiomitra leucorhabdota, 1: proximal LAPs; 2: median LAPs. Ophiomitrella clavigera, 3: proximal LAPs; 4: median LAPs; 5: distal LAPs. Ophioplinthaca plicata, 6: proximal LAPs; 7: median LAPs.
FIGURE 9 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification
FIGURE 9. Lateral arm plates (LAPs) in external (a) and internal (b) views. Ophiacantha placida, 1: proximal LAPs; 2: median LAPs. Ophiacantha antarctica, 3: proximal LAPs; 4: median LAPs; 5: distal LAPs. Ophiacantha bidentata, 6: proximal LAPs; 7: median LAPs; 8: distal LAPs.
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