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.