Ophionereis dubia amoyensis A. M. Clark, 1953

Okanishi, Masanori & Fujita, Yoshihisa, 2019, A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae), Zootaxa 4571 (1), pp. 73-98 : 83-84

Ophionereis dubia amoyensis A. M. Clark, 1953

[New Japanese name: Amoi-amime-kumohitode]

( Fig. 8C )

Ophionereis amoyensis A. M. Clark 1953: 88 –90, text-fig. 11.— A. M. Clark & Rowe 1971: 88, 122.— A. M. Clark 1982: 488, 492.— O’Hara & Byrne 2017: 333. Ophionereis dubia amoyensis . Liao & A. M. Clark 1995: 273, fig. 150.

Material examined. Ie Island (RUMF-ZE-02046[1], RUMF-ZE-02047[1]): “entrance” of the “Unnamed cave”, under coral rubble, approximately 20 m depth, 24 June 2017.

Distribution. China to Southern Japan. Depth 142 m.

Remarks. This species is identified as Ophionereis dubia amoyensis by virtue of: lacking genital papillae; having markedly wider dorsal arm plates, three times as side as long scales; and large supplementary dorsal arm plates (e.g. A. M. Clark & Rowe, 1971). This is the first record of the subspecies from Japanese waters.

Figures

FIGURE 8. Aboral views of living specimens. A, Ophiothrix purpurea von Martens, 1867 (RUMF-ZE-02042); B, Ophiothrix aff. picteti (RUMF-ZE-02044); C, Ophionereis dubia amoyensis A. M. Clark, 1953 (RUMF-ZE-02046); D, Ophionereis fusca Brock, 1888 (RUMF-ZE-02049); E, Ophionereis porrecta Lyman, 1860 (RUMF-ZE-02054); F, Ophionereis tigris H. L. Clark, 1938 (RUMF-ZE-02045); G, Ophiolepis cavitata Okanishi & Fujita, 2018a (RUMF-ZE-02059); H, Ophiolepis cincta Müller & Troschel, 1842 (RUMF-ZE-02058).