Vol. 60, 2021
A New Species of the Genus Ophiomonas Djakonov (Echinodermata: Ophiuroidea: Amphilepididae) from the Deep-Sea of Japan
Masanori Okanishi1,*, Takumi Matsuo2,3, and Toshihiko Fujita2,3
Marine Biological Station, Graduate School of Science, The University
of Tokyo, 1024 Koajiro, Misaki, Miura 238-0225, Japan. *
Correspondence: E-mail: email@example.com (Okanishi)
Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba 305-0005, Japan.
E-mail: firstname.lastname@example.org (Matsuo); email@example.com (Fujita)
3Department of Biological Sciences, Graduate School of
Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8654
Received 2 March 2021 / Accepted 12 July 2021
Communicated by James D. Reimer
A new species, Ophiomonas shinseimaruae is described based on five specimens collected from deep water settings, southeast of Cape Erimo, Hokkaido, Japan. Ophiomonas shinseimaruae
sp. n. is distinguished from other congeners based on the following
characters: elongate semi-circular and separated radial shields;
triangular oral shields; flat and broad tentacle scales on the second
tentacle pore; octagonal dorsal arm plates, approximately three times
wider than long on proximal portion of the arm; and three arm spines
present proximally on the arm. This is the first record of the genus Ophiomonas from Japanese waters. The COI nucleotide sequence for Ophiomonas shinseimaruae sp. n. is provided.
Key words: Brittle star, COI, DNA barcoding, Abyssal zone, Gnathophiurina, Taxonomy, Ophiomonas shinseimaruae sp. n.
M, Matsuo T, Fujita T. 2021. A new species of the genus Ophiomonas
Djakonov (Echinodermata: Ophiuroidea: Amphilepididae) from the deep-sea
of Japan. Zool Stud 60:59.