Actiniaria sp.1, Hertwig, 1882

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 : 47

Actiniaria sp.1

Fig. 5C .

MATERIAL. LV-75-3, 55.4160°N 167. 2734ºE – 55.4161°N 167.2739ºE, depth 384– 351 m, 27 specimens photographed; LV-75-9, 55.4158°N 167.2738ºE, depth 379 m, one specimen photographed.

LV-82-1, 55.4163°N 167.2738ºE, depth 348 m, one specimen photographed.

REMARKS. About 30 specimens of medium-sized (up to 5–7 cm in diameter of the tentacular crown) white sea anemones were detected, but not collected, among the settlements of zoantharians and Sagartiogeton rufus on the northern top of the Piip Volcano at 348– 384 m. They have short column and long tapering tentacles arranged hexamerously in five cycles (6+6+12+24+48= up to 96), the oral disc is small, almost completely covered by the tentacles, the oral cone is high. The species has some superficial similarity with white Corallimorphus cf. pilatus , but differs in its tapering tentacles without acrospheres.

Figures

Fig. 5. A — Sagartiogeton rufus; B — Metridium farcimen from Chukotka (photo of Viktor Lyagushkin); C — Actiniaria sp.1; D — Actiniaria sp.2; E — Actiniaria sp.3; F — Actiniaria sp.4; G — Actiniaria sp.5; H — Actiniaria sp.6; I — Actiniaria sp.7; J — the white form of Corallimorphus cf. pilatus; K — the brown form of Corallimorphus cf. pilatus; L — Corallimorphidae sp. Рис. 5. A — Sagartiogeton rufus; B — Metridium farcimen, Чукотка (фото Виктора ЛЯгуШкина); C — Actiniaria sp.1; D — Actiniaria sp.2; E — Actiniaria sp.3; F — Actiniaria sp.4; G — Actiniaria sp.5; H — Actiniaria sp.6; I — Actiniaria sp.7; J — белаЯ форма Corallimorphus cf. pilatus; K — коричневаЯ форма Corallimorphus cf. pilatus; L — Corallimorphidae sp.