Fig 14. <i>Ophiacantha trachybactra</i> H.L. Clark, 1911, type material, external views.
<dl><dd>A, holotype USNM 25649, 12.7 mm dd, off Cape Terpeniya, Sakhalin Id., Okhotsk Sea, dorsal view; B, same, ventral view; C, paratype USNM 25694, Shumagin Bank, Alaska, 7.2 mm dd, dorsal view; D, same, ventral view; E, same, proximal arm segments, dorsal view; F, same, latero-ventral view, SEM. as, adoral shields; gs, genital slit; j, jaws; op, oral papillae; os, oral shield; red asterisks indicate the absence of the adoral shield papillae. Scales bars, 0.5 mm (F), 1 mm (A–E).</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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