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4 results for “Ophiothrix angulata”
FIGURE 3 in Redescription and designation of a neotype for Ophiothrix angulata (Say, 1825) (Echinodermata: Ophiuroidea: Ophiotrichidae)
FIGURE 3. VariationS found in O. angulata: (A) Circular diSc (USMN 23739); (B) Ventral arm plateS in juvenileS; (C) DorSal arm plateS in juvenileS. Scale barS: A–C = 1 mm.
FIGURE 1 in Redescription and designation of a neotype for Ophiothrix angulata (Say, 1825) (Echinodermata: Ophiuroidea: Ophiotrichidae)
FIGURE 1. Morphological characterS of Ophiothrix angulata (neotype USNM E 33764, SEM imageS USMN 24338): (A) DorSal view of diSc; (B) Bifid SpineS; (C) Trifid SpineS; (D) Radial ShieldS covered by SpineS; (E) Ventral view of diSc; (F), DorSal arm plateS; (G) Ventral arm plate; (H) Lateral arm plate proximal; (I) Lateral arm plate diStal. Scale barS: A, D–F = 1 mm; B-C = 20 µm; G = 500 µm; H = 200 µm; I = 1mm.
FIGURE 2 in Redescription and designation of a neotype for Ophiothrix angulata (Say, 1825) (Echinodermata: Ophiuroidea: Ophiotrichidae)
FIGURE 2. SEM photographS of vertebra and arm SpineS of Ophiothrix angulata (USMN 24338): (A–D) Vertebrae: (A) Proximal aSpect; (B) DiStal aSpect; (C) Ventral aSpect; (D) DorSal aSpect. (E) Arm Spine. Scale barS: A–C = 200 µm; D = 100 µm; E = 500 µm.
FIGURE 6. Ophiothrix angulata ZUEC OPH 2194 in Shallow-water brittle stars (Echinodermata: Ophiuroidea) from Araçá Bay (Southeastern Brazil), with spatial distribution considerations
FIGURE 6. Ophiothrix angulata ZUEC OPH 2194 (5.7 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; as: arm spine; bs: bursal slits; cdp: cluster of dental papillae; d: dorsal; dap: dorsal arm plate; ddi: dorso-distal; di: distal; dk: distal keel; ddmf: dorso-distal muscular fossae; ds: disc spine; dp: dorso-proximal; jd: jaw depression; kn: knob; lg: large groove; ma: madreporite; os: oral shields; otp: oral tentacle pore; 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: zygocondyle; zp: zygosphene. Stereomicroscope photos: (A)–(E), scale bar equal to 0.5 mm. SEM photos: (F)–(M), scale bar equal to 100 µm.
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