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11 results for “Ophiactis”
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 5. Ophiactis modesta from the Persian Gulf. A, dorsal disc. B, oral frame. C, dorsal arm. D in New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details
FIGURE 5. Ophiactis modesta from the Persian Gulf. A, dorsal disc. B, oral frame. C, dorsal arm. D, ventral arm. Abbreviations as in fig. 4, and DAP, dorsal arm plate, TS, tentacle scale. Scale bars in millimetre.
FIGURE 4 in New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details
FIGURE 4. SEM images of Ophiothela venusta, ventral aspects. A, thick skin obscures all skeletal features. B, skin removed, exposing the skeleton, oral frame. C, ventral skeleton and radial shields from below. D, teeth and few remaining tooth papillae, oral plates. E, series of arm vertebrae, lateral aspect. AS, adoral shield, DP, dental plate, GP, genital plate, k, keel, LAP, lateral arm plate, M, madreporite, OP, oral plate, OS, oral shield, PB, podial basin of second tentacle pore, RS, radial shield, SA, spine articulation, T, tooth, TF, second tube foot, TP, tooth papillae, V, vertebra, VAP, ventral arm plate. Scale bars in millimetre.
FIGURE 3. Ophiothela venusta from the Persian Gulf. A-C in New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details
FIGURE 3. Ophiothela venusta from the Persian Gulf. A-C, variation in colour pattern in preserved and dried specimens, colours have faded, and red has turned to yellow (A, B). D, specimen treated with bleach (NaOCl) to remove the outer epidermis and part of the granules, radial shields mostly exposed, ventral side still covered by translucent skin. E, skin completely removed by longer treatment with bleach (NaOCl), exposing arm vertebrae, dental plates, oral plates (jaws), genital plates and radial shields. DP, dental plate, GP, adradial genital plate, LAP, lateral arm plate, OP, oral plate, RS, radial shield, V, vertebra, VAP, ventral arm plate, TP, tooth papillae. Scale bars in millimetre.
FIGURE 1 in New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details
FIGURE 1. Location of the two shipwrecks studied, an unnamed barge and "Raffaello" in the Persian Gulf, Bushehr harbour, Iran.
FIGURE 2 in New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details
FIGURE 2. Live specimens of Ophiothela venusta associated with the gorgonian Euplexaura sp. A, note the high number of brittle stars (>10) and their colour variability with red–black–white bands, white–red, yellow–red and uniformly greyish–green animals. B, magnified upper right quarter of A, upper animal with wider dark blue and red bands, separated by thin white bands, lower animal with wide white and narrower red bands. Scale bars in millimetre.
FIGURE 3 in The widely occurring brittlestar Ophiactis savignyi (Amphilepidida: Ophiactidae) as an epibiont on loggerhead sea turtle, Caretta caretta
FIGURE 3. Ophiactis savignyi (Müller & Troschel, 1842) (CMNH-ZE 01692), disc diameters are 1.0 mm (A; different specimen from Fig. 2A) and 2.9 mm (B–D). A, aboral disc and proximal portion of arms, arrow heads indicate spines on disc edge; B, oral disc, part of jaws; C, lateral proximal portion of an arm, arrow heads indicate arm spines; D, aboral proximal portion of an arm. Abbreviations: D, dorsal arm plate; OP, oral papillae. Scale bars = 1 mm
FIGURE 2 in The widely occurring brittlestar Ophiactis savignyi (Amphilepidida: Ophiactidae) as an epibiont on loggerhead sea turtle, Caretta caretta
FIGURE 2. Ophiactis savignyi (Müller & Troschel, 1842) (CMNH-ZE 01692), aboral view showing conspicuously variegated green and white body color, disc diameters are 1.0 mm (A), 2.2 mm (B), 2.0 mm (C), 2.5 mm (D), 1.8 mm (E).
FIGURE 18. Ophiactis savignyi ZUEC OPH 2148 in Shallow-water brittle stars (Echinodermata: Ophiuroidea) from Araçá Bay (Southeastern Brazil), with spatial distribution considerations
FIGURE 18. Ophiactis savignyi ZUEC OPH 2148 (3.2 mm dd). (A) Dorsal view. (B) Ventral view. (C) Detail of the oral view. (D) Detail of dorsal arm. (E) Detail of ventral arm. (F) Dorsal arm plate. (G) Ventral arm plate. (H-I) Lateral arm plate. (J) Vertebra—proximal surface. (K) Vertebra—distal surface. (L) Vertebra—dorsal surface. (M) Vertebra—ventral surface. Abbreviations: ads: adoral shields; ap: apical papilla; as: arm spine; bs: bursal slits; d: dorsal; dap: dorsal arm plate; ddi: dorsodistal; ddmf: dorso-distal muscular fossae; di: distal; dp: dorso-proximal; ds: disc spine; lop: lateral oral papilla; os: oral shields; p: proximal; pe: perforation; rs: radial shields; tn: tentacle notch; ts: tentacle scale; v: ventral; vap: ventral arm plate; vdi: ventro-distal; vp: ventro-proximal; zd: zygoscondyle; zp: zygosphene. Stereomicroscope photos: (A)–(E), scale bar equal to 0.5 mm. SEM photos: (F)–(M), scale bar equal to 100 µm.
FIGURE 17. Ophiactis lymani ZUEC OPH 2258 in Shallow-water brittle stars (Echinodermata: Ophiuroidea) from Araçá Bay (Southeastern Brazil), with spatial distribution considerations
FIGURE 17. Ophiactis lymani ZUEC OPH 2258 (2.9 mm dd). (A) Dorsal view. (B) Ventral view. (C) Detail of the oral view. (D) Detail of dorsal arm. (E) Detail of ventral arm. (F) Dorsal arm plate. (G) Ventral arm plate. (H-I) Lateral arm plate. (J) Vertebra—proximal surface. (K) Vertebra—distal surface. (L) Vertebra—dorsal surface. (M) Vertebra—ventral surface. Abbreviations: ads: adoral shields; ap: apical papilla; as: arm spine; bs: bursal slits; d: dorsal; dap: dorsal arm plate; ddi: dorsodistal; ddmf: dorso-distal muscular fossae; di: distal; dp: dorso-proximal; ds: disc spine; lap: lateral arm plate; lop: lateral oral papilla; os: oral shields; p: proximal; rs: radial shields; ts: tentacle scale; v: ventral; vap: ventral arm plate; vdi: ventro-distal; vp: ventro-proximal; zd: zygoscondyle; zp: zygosphene. Stereomicroscope photos: (A)–(E), scale bar equal to 0.5 mm. SEM photos: (F)–(M), scale bar equal to 100 µm.
FIGURE 1 in The widely occurring brittlestar Ophiactis savignyi (Amphilepidida: Ophiactidae) as an epibiont on loggerhead sea turtle, Caretta caretta
FIGURE 1. Heavily encrusted female loggerhead sea turtle (plastic tags of Yakushima Umigame-kan, No. Y8390 on the right hind flipper and No. Y8389 on the left hind flipper). The first landing record of this turtle was 2002 July, 21th in Yakushima Is. Landings of this turtle were recorded in 2002, 2008 and 2017.
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