File:Ophiacantha trachybactra (10.1371-journal.pone.0139463) Figure 19.jpg

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English: Fig 19. Ophiacantha trachybactra H.L. Clark, 1911, subadult specimen 6.8 mm disk diameter NSMT E–7557, sta. KT-93-15 (M 3), off Sanriku, northern Honshū, details, SEM.
A–M, proximal segments. A, lateral arm plate; B, same, inside view; C, ventral arm plate; D, dorsal spine; E, arm spine articulations; F, spine, ventral view; G, dorsal spine, transversely sectioned at the base showing a single large cavity; H, dorsal spine, transversely sectioned in the middle showing several small cavities; I, ventral spine; J, vertebra, dorsal view; K, same, ventral view; L, same, distal view; M, same, proximal view; N–T, middle segments. N,O, lateral arm plates showing no additional protuberance; P, arm spine articulations; Q, vertebra, dorsal view; R, same, distal view; S, ventral arm plate. Red asterisks indicate the absence of the vertebral condyle (streptospondylous articulation) throughout the arms. Scales bars, 0.05 mm (F, G, H), 0.1 mm (A, B, C, E, I–S), 0.2 mm (D).
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Source https://dx.doi.org/10.1371%2Fjournal.pone.0139463
Author 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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current12:18, 14 April 2020Thumbnail for version as of 12:18, 14 April 20201,944 × 2,615 (3.13 MB)Christian Ferrer (talk | contribs){{Information | description = {{en|1=Fig 19. ''Ophiacantha trachybactra'' H.L. Clark, 1911, subadult specimen 6.8 mm disk diameter NSMT E–7557, sta. KT-93-15 (M 3), off Sanriku, northern Honshū, details, SEM. :A–M, proximal segments. A, lateral arm plate; B, same, inside view; C, ventral arm plate; D, dorsal spine; E, arm spine articulations; F, spine, ventral view; G, dorsal spine, transversely sectioned at the base showing a single large cavity; H, dorsal spine, transversely sectioned in t...

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