Abstract
This paper provides descriptions of Calcigorgia gorgonians collected from the Sea of Okhotsk and shores of the Kurile Islands between 3 Aug. 1984 and 20 Aug. 1987. New species described are the deep-water gorgonians Calcigorgia matua sp. nov. and C. simushiri sp. nov., belonging to the temperate fauna of the North Pacific hemisphere. Specimens belonging to all species of the genus were examined and the distinctive characters for each one are provided and summarized in a table. A modified diagnosis of the genus is proposed. The finding of a previously undescribed species emphasizes the need of further surveys, particularly in shelf and deeper waters, in order to improve our knowledge of this neglected fauna in Far East seas.
Highlights
The Octocorallia Haeckel, 1866 of the Sea of Okhotsk are very poorly known. Broch (1935) examined the material collected by Prof
The present paper presents new data about the species composition of Calcigorgia Broch, 1935 gorgonians, including description of the new species Calcigorgia matua sp. nov. and C. simushiri sp. nov
Gorgonians of the genus Calcigorgia are distributed from Alaska and the Aleutian Islands to Kurile and Sakhalin Island to the north and to the northwestern Sea of Japan to the south, depth range is to a depth of 900 m (Broch 1935; Heifetz 2002; Heifetz et al 2005; Dautova 2007)
Summary
The Octocorallia Haeckel, 1866 of the Sea of Okhotsk are very poorly known. Broch (1935) examined the material collected by Prof. The Octocorallia Haeckel, 1866 of the Sea of Okhotsk are very poorly known. Broch (1935) examined the material collected by Prof. K.M. Deryugin at depths between 72 and 515 m (Okhotsk Sea) and between 600 and 700 m (Tatarian Gulf). Broch (1935) described the new gorgonian genus – Calcigorgia Broch, 1935 using material collected at a depth of 150–165 m near the north of Sakhalin Island. The type species Calcigorgia spiculifera Broch, 1935 was known until another member of the genus – Calcigorgia japonica Dautova, 2007 – was described from the central part of the Sea of Japan from material collected at a depth of 832–736 m (Dautova 2007).
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