Published March 31, 2023 | Version v1
Taxonomic treatment Open

Actinernus robustus

  • 1. Kamchatka Branch of Pacific Geographical Institute, Far Eastern Branch of the Russian Academy of Sciences, Partizanskaya 6, Petropavlovsk-Kamchatsky, 683000, Russia. E-mail: actiniaria @ sanamyan. com
  • 2. Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str. 26, Moscow, 119334, Russia. E-mail: bocharova. ekaterina @ gmail. com
  • 3. Kamchatka Branch of the Russian Federal Research Institute of Fisheries and Oceanography, Naberezhnaya Str. 18, Petropavlovsk-Kamchatsky, 683000, Russia. E-mail: tmorozov 1 @ yandex. ru
  • 4. Shirshov Institute of Oceanology of Russian Academy of Sciences, Nahimovskiy Pr. 36, Moscow, 117997, Russia. E-mail: galkin @ ocean. ru

Description

Actinernus robustus (Hertwig, 1882)

Fig. 2B.

Porponia robusta Hertwig, 1882:113; Carlgren,1914: 54; 1949: 21.

Actinernus robustus: Uchida, 2007: 20 (and synonymy).

MATERIAL. LV-75-22, 55.5100ºN 167.3240ºE – 55.5040ºN 167.3196ºE, depth 3561– 3485 m, one specimen collected (sample 8) and ten specimens photographed.

LV-82-5, 55.2696ºN 167.2994ºE, depth 3526 m, sample 5, one specimen collected; LV-82-6, 55.6946ºN 167.1238ºE – 55.6825ºN 167.1075ºE, depth 3906– 3393 m, four specimens collected (sample 3) and four specimens photographed.

REMARKS. Twenty specimens were photographically documented in the abyssal zone off northern and southern slopes of the Vulcanologov Massif, six of them were collected. The records of this unusual large (up to 20 cm in the diameter of the tentacular crown) anemone are very rare, in the Bering Sea it is reported for the first time. This is most northern and most deep-water (3393–3906 m) record of this species. Previously Actinernus robustus was known from Pacific coasts of Japan: originally it was described from the material collected off Japan by Challenger Expedition (3429 m, Hertwig, 1882; Carlgren, 1949) and then reported by Uchida (2007) from the same region from 1008–1200 m.

Notes

Published as part of Sanamyan, N. P., Sanamyan, K. E., Bocharova, E. S., Morozov, T. B. & Galkin, S. V., 2023, Sea anemones (Actiniaria, Corallimorpharia and Zoantharia) from the Western Bering Sea (Northwest Pacific), pp. 27-56 in Invertebrate Zoology 20 (1) on page 30, DOI: 10.15298/invertzool.20.1.02, http://zenodo.org/record/15472897

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Linked records

Additional details

Biodiversity

References

  • Hertwig R. 1882. Report on the Actiniaria dredged by H. M. S. Challenger during the years 1873 - 1876 // Report on the Scientific Results of the Voyage of the H. M. S. Challenger during the years 1873 - 76 (Zoology). Vol. 6. P. 1-136.
  • Uchida H. 2007. Actinologia Japonica (2) on the actiniarian family Actinernidae from Japan // Bulletin of the Biological Institute of Kuroshio. Vol. 3. P. 17-32.
  • Carlgren O. 1949. A survey of the Ptychodactiaria, Corallimorpharia and Actiniaria // Kungliga Svenska Vetenskapsakademien Handlingar. Bd. 1. P. 1-129.