Fig 2. Adult disk spines and oral frames of <i>Ophiacantha kokusai</i> sp.nov. (A–B, holotype), <i>Ophiacantha rhachophora</i> H.L. Clark, 1911 (C–D, NSMT E–1540) and <i>Ophiacantha trachybactra</i> H.L. Clark, 1911 (E–F, NSMT E–7543).
<dl><dd>SEM of uncoated specimens using Keyence VHX-D510. ap, adoral shield papillae; as, adoral shields; dp, dental plate; gs, genital slit; j, jaws; op, oral papillae; os, oral shield; th, teeth; red asterisks indicate absence of the adoral shield papillae in adult O. rhachophora and O. trachybactra. Scales bars, 0.1 mm.</dd></dl>
Martynov, A., Ishida, Y., Irimura, S., Tajiri, R., O’Hara, T.D., Fujita, T. 2015. When Ontogeny Matters: A New Japanese Species of Brittle Star Illustrates the Importance of Considering both Adult and Juvenile Characters in Taxonomic Practice. PLoS ONE. 10(10): e0139463.
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