著者
Itaru Kobayashi Toshihiko Fujita
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.28, no.1, pp.45-50, 2023-01-26 (Released:2023-01-26)
参考文献数
9

A new shallow-water species of the genus Odontohenricia Rowe and Albertson, 1988 is described from the coast of Rishiri Island, Hokkaido, northeastern Japan. The new species is different from other congeners in having intermarginal series extending 2/3 of the arm length, abactinal spines more than 0.3 mm in length, and oral spines with opaque and serrated tips.
著者
Itaru Kobayashi Masaki Yamamoto Yoshihiro Fujiwara Shinji Tsuchida Toshihiko Fujita
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.27, no.2, pp.251-258, 2022-07-29 (Released:2022-07-29)
参考文献数
16

We describe a new species of the rare and deep-sea family Myxasteridae from Japanese waters. This is the first record of this family in the western North Pacific. The new species, Asthenactis agni n. sp., differs from all congeners in having seven arms with an R/r ratio of 7.2, primary radial plates with convex distal edges, and two to three actinolateral spines that are up to 4.7 mm long.