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343 results for “Brittle stars”
FIGURE 5 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 5: Ophiocten cryptum n. sp. holotype, disc diameter 7.5 mm. A: dorsal, B: ventral. Ophiomidas aurum, n. sp. holotype, disc diameter 4.5 mm. C: dorsal, D: ventral. Ophiophyllum teplium n. sp, holotype, disc diameter 7 mm. E: dorsal, F: ventral.
FIGURE 4 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 4: Ophiophycis richardi n. sp. holotype, disc diameter 4 mm. A: dorsal, B: ventral, E: armbase (SEM). Ophiophycis johni n. sp. holotype, disc diameter 5.5 mm. C: dorsal, D: ventral, F: armbase (SEM).
FIGURE 1 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 1: Ophiolebes comatulina n. sp. holotype, disc diameter 5 mm. A: dorsal, B: ventral. Ophiolycus farquhari n. sp. disc diameter 6 mm. C: dorsal, D: ventral. Ophiolepis biscalata n. sp. holotype, disc diameter 16 mm. E: dorsal, F: ventral.
FIGURE 3 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 3: Amphiophiura bakeri n. sp. holotype, disc diameter 9.5 mm. A: dorsal, B: ventral; paratype, C: dorsal (SEM), D: ventral (SEM). Ophiura (Ophiuroglypha) verrucosa n. sp. holotype, disc diameter 17 mm, E: dorsal, F: ventral.
FIGURE 6 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 6: Ophiura (Dictenophiura) spinicantha n. sp. holotype, disc diameter 16 mm. A: dorsal, B: ventral, E: armbase. Ophiura (Dictenophiura) platyacantha n. sp. holotype, disc diameter 14 mm., C: dorsal, D: ventral, F: armbase.
Fig. 6 in A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence
Fig. 6. Ophiopsila cf. polyacantha (NSMT E-13189), SEM photographs of vertebrae from middle (A–C) and distal (D–G) portions of arms. A, F, ventral views; B, G, dorsal views; C, lateral view; D, proximal view; E, distal view. Arrowheads indicate orientation: do, dorsal side; dis, distal side; pro, proximal side; v, ventral side. Abbreviations: DF, dorsal muscle flange; DT, depression for tentacle; H, hole; LaS, lateral saddle; LoF, longitudinal furrow; VF, ventral muscle flange. Scale bars=100 µm.
Fig. 2 in A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence
Fig. 2. Ophiopsila cf. polyacantha, living, in situ (A, B), anesthetized (C, D) and fixed (E–H) states of a smaller specimen (A, G, H; NSMT E-13190) and a larger specimen (B–F; NSMT E-13189). A, with burrowed disc and extended arms; B, exposed from sand ground, dorsal view; C, E, G, dorsal views; D, F, H, ventral views. Scale bars=1 cm.
Fig. 8 in A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence
Fig. 8. Ophiopsila cf. polyacantha (NSMT E-13189), SEM photographs of arm ossicles: A–C, arm spines from middle (A, B) and distal (C) portion of arms, ventral most (A, C) and middle (B) one; D–F, adradial tentacle scales, from proximal (D), middle (E) and distal (F) portion of arms; G–L, dorsal arm plate from proximal (G, H), middle (I, J) and distal (K, L) portion of arms, internal (G, J, L) and external (H, I, K) views; M–R, ventral arm plates from proximal (M, N), middle (O, P) and distal (Q, R) portion of arms, internal (M, O, Q) and external (N, P, R) views. Arrowheads indicate orientations: ba, basal side; dis, distal side; ex, external side; pro, proximal side. Scale bars=100 µm.
Fig. 5 in A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence
Fig. 5. Ophiopsila cf. polyacantha (NSMT E-13189), SEM photographs of vertebrae from proximal (A–E) and middle (F, G) portions of arms. A, F, distal views; B, G, proximal views; C, ventral view; D, dorsal view; E, lateral view. Arrowheads indicate orientation: do, dorsal side; dis, distal side; pro, proximal side; v, ventral side. Abbreviations: DF, dorsal muscle flange; DT, depression for tentacle; LaS, lateral saddle; LoF, longitudinal furrow; TrF, transverse furrow; VF, ventral muscle flange. Scale bars=100 µm.
Fig. 4 in A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence
Fig. 4. Ophiopsila cf. polyacantha (NSMT E-13189): A–C, dorsal views of arms, proximal (A), middle (B) and distal (C) portions; D–F, lateral views of arms, proximal (D), middle (E) and distal (F) portions. Arrows indicate orientations: do, dorsal side; v, ventral side. Arrowheads indicate arm spines. Abbreviations: DAP, dorsal arm plate; T, tentacle; TS, tentacle scale. Scale bars=1 mm.
Fig. 3 in A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence
Fig. 3. Ophiopsila cf. polyacantha (NSMT E-13189): A, dorsal disc; B, dorsal central part of disc; C, dorsal peripheral part of disc, arrowheads indicate internal edges of radial shields; D, jaws; E, lateral interradial part of disc; F–H, oral views of arms, proximal (F), middle (G) and distal (H) portions. Abbreviations: AdS, adradial shield; AS, arm spine; ASS, adoral shield spine; GS, genital slit; IP, infradental papilla; OS, oral shield; ORS, oral ridge spine; TS, tentacle scale; VAP, ventral arm plate. Scale bars=1 mm.
Fig. 7 in A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence
Fig. 7. Ophiopsila cf. polyacantha (NSMT E-13189), SEM photographs of arm ossicles from distal portion (A, H–J), proximal portion (B–D, K, L) and middle portion (E–G): A, vertebra, lateral view; B–J, lateral arm plates, external views (B, E, H), internal views, arrowheads indicate perforations (C, F, I) and distal views (D, G, J); K, L, arm spines, ventral most (K) and middle (L) one. Arrowheads indicate orientations: ba, basal side; dis, distal side; do, dorsal side, ex, external side; v, ventral side; pro, proximal side. Abbreviations: DL, dorsal lobe; DT, depression for tentacle; K, knob; MO, muscle opening; NO, nerve opening; R, ridge; TN, tentacle notch; VL, ventral lobe. Scale bars=100 µm.
Fig. 42 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. 42. Ophiactis cf. brachygenys H.L. Clark, 1911 (IDSSE EEB-SW0016 = hexamerous specimen). A. Dorsal disc. B. Ventral disc. C. Radial shields. D. Lateral disc. E. Disc spine. F. Oral frame. G. Dorsal arm. H. Ventral arm. Abbreviations: as = adoral shield; dap = dorsal arm plate; ds = disc spine; gs = genital slit; os = oral shield; rs = radial shield; tp = tentacle pore; ts = tentacle scale; vap = ventral arm plate. Scale bars: A–B = 500 µm; C–H = 200 µm.
Fig. 39 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. 39. Ophiactis profundi Lütken & Mortensen, 1889, SEM (IDSSE EEB-SW0017). A. Dorsal arm plate. B–C. Lateral arm plate (external, internal). D–G. Vertebrae. D. Proximal view. E. Distal view. F. Ventral view. G. Dorsal view. Abbreviations: D = dorsal; Dist = distal; dl = dorsal lobe; mo = muscle opening; no = nerve opening; Prox = proximal; V = ventral; vl = ventral lobe. Scale bars = 300 µm.
Fig. 37 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. 37. Ophiactis cf. perplexa Koehler, 1897, SEM (IDSSE EEB-SW0013). A–C. Lateral arm plate. D–H. Vertebrae. D. Proximal view. E. Distal view. F. Ventral view. G. Dorsal view. H. Lateral view. Abbreviations: asa = arm spine articulation; D = dorsal; Dist = distal; dl = dorsal lobe; mo = muscle opening; no = nerve opening; Prox = proximal; V = ventral; vl = ventral lobe. Scale bars: A, G = 200 µm; B–F, H = 300 µm.
Fig. 38 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. 38. Ophiactis profundi Lütken & Mortensen, 1889 (IDSSE EEB-SW0017). A. Dorsal disc. B. Ventral disc. C. Radial shields. D. Oral frame. E. Dorsal arm. F. Ventral arm. G. Lateral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gs = genital slit; os = oral shield; rs = radial shield; tp = tentacle pore; ts = tentacle scale; vap = ventral arm plate. Scale bars: A–B = 1 mm; C, G = 500 µm; D–F = 200 µm.
Fig. 45. Family Ophiomusaidae O 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. 45. Family Ophiomusaidae O'Hara et al., 2018, Maximum likelihood (ML) tree based on partial COI sequences (bootstrap support values were generated with rapid bootstrapping algorithm for 1000 replicates). Abbreviations: NZ = New Zealand; SC = Sub-Clade; SCS = South China Sea.
Fig. 46. Family Ophiotomidae Paterson, 1985 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. 46. Family Ophiotomidae Paterson, 1985, Maximum likelihood (ML) tree based on partial COI sequences (bootstrap support values were generated with rapid bootstrapping algorithm for 1000 replicates). Abbreviations: IC = Inter Clade; SC = Sub-Clade; SCS = South China Sea.
Fig. 35 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. 35. Ophiomoeris petalis sp. nov., SEM, paratype (IDSSE EEB-SW0031). A–C. Lateral arm plate. D–F. Vertebrae. D. Dorsolateral view. E. Ventral view. F. Lateral view. Abbreviations: Dist = distal; dl = dorsal lobe; mo = muscle opening; no = nerve opening; Prox = proximal; vl = ventral lobe; vs = volute-shaped. Scale bars: A–B, E = 200 µm; C–D, F = 100 µm.
Fig. 32 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. 32. Ophiacantha aster sp. nov., SEM, paratype (IDSSE EEB-SW0027). A–B. Lateral arm plate. C. Base of dorsal arm spine. D–H. Vertebrae. D. Proximal view. E. Distal view. F. Ventral view. G. Dorsal view. H. Lateral view (broken distal end). Abbreviations: asa = arm spine articulation; D = dorsal; Dist = distal; dl = dorsal lobe; mo = muscle opening; no = nerve opening; Prox = proximal; V = ventral; vl = ventral lobe; vs = volute-shaped. Scale bars: A–D, F–H = 500 µm; E = 300 µm.
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