Actinostola sp.3

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), Invertebrate Zoology 20 (1), pp. 27-56 : 38

Actinostola sp.3

Fig. 3F .

MATERIAL. LV-75-9, 55.4178ºN 167.2763ºE, depth 433 m, one specimen photographed.

LV-82-13, 60.8336ºN 174.3734ºE, depth 659 m, one specimen photographed; LV-82-14, 61.1196ºN 174.9649ºE, depth 660 m, two specimens photographed; LV-82-18, 61.1190ºN 174.9691ºE – 61. 1195ºN 174.9650ºE, depth 677– 658 m, three specimens collected (sample 3) and one specimen photographed.

REMARKS. This is large species of Actinostola , up to 18 cm in diameter of the tentacular crown in live. The column is rose-orange with transverse wrinkles, without tubercles near the margin. The tentacles and the oral disc yellowish-orange, aboral mesogloeal thickening at the base of the tentacles are bright yellow, well developed. The tentacles occupy at least half of the radius of the oral disc, up to 150– 200 in number, shorter than the radius of the oral disc. Eight specimens were recorded on the northern slope of the Piip Volcano and on the Koryak slope in the Western Bering Sea at depths of 433–677 m, three of them collected. Some specimens have been found near the cold seeps, bacterial mats and settlements of bivalves of the genus Calyptogena .

Figures

Fig. 3. A — Sicyonis sp.; B — Ophiodiscus bukini; C — Actinostola faeculenta; D — Actinostola sp.1; E — Actinostola sp.2; F — Actinostola sp.3; G — Actinostola sp.4; H — Actinostola sp.5 (photo of N. Sanamyan); I — Stomphia sp.; J — Tealidium konoplinorum; K — cf. Halcampa sp. from the northern slope of the Piip Volcano; L — cf. Halcampa sp. from the southern slope of the Piip Volcano. Рис. 3. A — Sicyonis sp.; B — Ophiodiscus bukini; C — Actinostola faeculenta; D — Actinostola sp.1; E — Actinostola sp.2; F — Actinostola sp.3; G — Actinostola sp.4; H — Actinostola sp.5 (фото Н. СанамЯн); I — Stomphia sp.; J — Tealidium konoplinorum; K — cf. Halcampa sp. на северном склоне вулкана Пийпа; L — cf. Halcampa sp. на южном склоне вулкана Пийпа.