Ophiopetagno paicei Thuy, Eriksson & Numberger-Thuy 2022

Ophiopetagno paicei Thuy, Eriksson & Numberger-Thuy, 2022 Figs 5K–N, 7 Diagnosis (emended from Thuy et al. 2022) Species of Ophiopetagno with lateral arm plates showing a concave dorsal edge, fine outer surface tuberculation, a deep tentacle notch incision, three relatively large, prominent lateral spine articulations in a continuous row, and ambulacral groove spine articulations in a continuous row along the entire ventral edge with a weak offset from the latter. Remarks Ophiopetagno paicei was described by Thuy et al. (2022) as part of the species pair shown to be at the origin of the modern ophiuroid clade. The lateral arm plates of O. paicei differ from those of its congeners described herein in having a concave dorsal edge and three relatively large spine articulations in a continuous row along the distal plate edge.