Sagartiogeton californicus ( Carlgren, 1940 )

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 : 44-45

Sagartiogeton californicus ( Carlgren, 1940)

Fig. 4L .

Sagartiogeton californicus : Eash-Loucks, Fautin, 2012: 43; Sanamyan et al., 2023: 3 .

MATERIAL. LV-75-3, 55.4158°N 167.2738ºE, depth 355 m, three specimens photographed; LV-75-15, 55.3821°N 167.2614ºE, depth 452 m, two specimens photographed; LV-75-19, 55.382°N 167.2608ºE, depth 453 m, one specimen photographed.

LV-82-1, 55.4171°N 167.2773ºE – 55.4160°N 167.2744ºE, depth 386– 373 m, several specimens photographed; LV-82-8, 55.382°N 167.2608ºE, depth 458 m, one specimen photographed. LV-82- 11, 60.8528°N 174.3516ºE, depth 534 m, two specimens photographed; LV-82-12, 60.8549°N 174. 3485ºE – 60.8901°N 174.2908ºE, depth 550– 432 m, three specimens collected (sample 1) and many specimens photographed; LV-82-14, 61.1188°N 174.9679ºE – 61.1351°N 174.9419ºE, depth 684– 554 m, one specimen collected (sample 1) and many specimens photographed; LV-82-15, 61.1396°N 174.9352ºE – 61.1779°N 174.8708ºE, depth 537– 417 m, several specimens collected (samples 3, 5, 10, 11, 12 and 13) and many specimens photographed; LV-82-16, 61.1787°N 174.8704ºE – 61.1899°N 174.8345ºE, depth 416– 356 m, two specimens collected (sample 2) and many specimens photographed; LV-82-17, 61.1806°N 174.8508ºE – 61.1801°N 174.8493ºE, depth 402– 401 m, two specimens collected (samples 4 and 6) and many specimens photographed; LV-82-19, 61.1538°N 175. 4492ºE – 61.1539°N 175.4492ºE, depth 692–693 m, one specimen collected (sample 2) and several specimens photographed; LV-82-20, 61.1713°N 174. 8810ºE – 61.1724°N 174.8794ºE, depth 430– 428 m, one specimen collected (sample 4) and many specimens photographed.

PL-99-123, 61.215°N 174.888ºE – 61.202°N 174.865ºE, depth 355– 354 m, samples 24 and 25, two specimens collected.

PK-37-34, 61.088°N 174.574ºE – 61.101°N 174.586ºE, depth 531– 530 m, sample 15, one specimen collected; PK-37-36, 61.113°N 174.507ºE – 61.124°N 174.527ºE, depth 380– 365 m, sample 16, one specimen collected.

REMARKS. The species was photographically recorded, but not collected in 2016 on the southern top of the Piip Volcano, just near the hydrothermally active site at 453 m. Several similar specimens were documented on the southern and northern tops of the Piip Volcano at 355– 458 m. Many specimens were recorded and some collected on the Koryak slope (at 354–693 m), especially in methane seeps sites, where they were numerous and occurred on any available firm substrate on muddy bottom: on pebbles, dead shells and on the shells of live gastropods or of bivalve mollusks Calyptogena and other objects. The specimens are not large (up to 8 cm in the height and the diameter of the tentacular crown), with a light column and dark reddish-brown tentacles. The tentacles are numerous, about 200. In the shallow-water methane seeps on the Koryak slope, they dominate in the communities at depths of 400– 402 m (see Galkin et al., 2019) and occur directly on bacterial mats.

Figures

Fig. 4. A — Halcampidae sp. from the northern slope of the Piip Volcano; B — Halcampidae sp. from the Komandor Graben; C — cf. Halcampoides sp.; D — Amphianthus sp. from the northern slope of the Piip Volcano; E — Amphianthus sp. from the southern slope of the Piip Volcano; F — Paracalliactis cf. involvens; G — Hormathia sp.; H — Phelliactis sp. from the northern slope of the Piip Volcano; I — Phelliactis sp. from the southern slope of the Piip Volcano; J — aff. Hormathiidae sp. 1; K — aff. Hormathiidae sp. 2; L — Sagartiogeton californicus. Рис. 4. A — Halcampidae sp. на северном склоне вулкана Пийпа; B — Halcampidae sp. в грабене Командор; C — cf. Halcampoides sp.; D — Amphianthus sp. на северном склоне вулкана Пийпа; E — Amphianthus sp. на южном склоне вулкана Пийпа; F — Paracalliactis cf. involvens; G — Hormathia sp.; H — Phelliactis sp. на северном склоне вулкана Пийпа; I — Phelliactis sp. на южном склоне вулкана Пийпа; J — aff. Hormathiidae sp. 1; K — aff. Hormathiidae sp. 2; L — Sagartiogeton californicus.