Redescription of synactinernus flavus for the first time after a century and description of synactinernus churaumi sp. nov. (Cnidaria: Anthozoa: Actiniaria)

Takato Izumi, Takuma Fujii, Kensuke Yanagi, Takuo Higashiji, Toshihiko Fujita

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Two species of Synactinernus sea anemones were found in Japanese waters. Synactinernus flavusCarlgren, 1918, the only described species of this genus, is rediscovered from off the Goto Islands a century after the original description. Synactinernus flavus was once synonymized with Isactinernus quadrilobatusCarlgren, 1918; however, we show that, based on morphological (including examination of type specimens) and molecular (using nuclear 18S rDNA) evidence, these species are completely different. The other species, Synactinernus churaumi sp. nov., was found off Ishigaki Island and Okinawa Island by a remotely operated vehicle (ROV), and had been kept for 15 years in a tank at the Okinawa Churaumi Aquarium. There are clear differences between these two species; therefore, we describe the second species and revise the diagnosis of Synactinernus.

Original languageEnglish
Pages (from-to)528-538
Number of pages11
JournalZoological Science
Volume36
Issue number6
DOIs
Publication statusPublished - 1 Dec 2019
Externally publishedYes

Keywords

  • Actinernidae
  • Anenthemonae
  • Endocoelanthae
  • fertile mesentery
  • Goto Islands
  • mesenterial arrangement
  • mesogleal thickening
  • Okinawa Churaumi Aquarium

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