A revision of the genus Calcigorgia (Cnidaria, Octocorallia, Acanthogorgiidae) with the description of three new species Matsumoto, Asako K. Van Ofwegen, Leen P. Bayer, Frederick M. Zootaxa 2019 2019-03-25 4571 1 1 27 85NCB Matsumoto & Van Ofwegen & Bayer, 2019 Matsumoto & Van Ofwegen & Bayer 2019 [151,404,727,753] Anthozoa Acanthogorgiidae Calcigorgia GBIF Animalia Alcyonacea 5 6 Cnidaria species gigantea sp. nov.   Figures 1a, 2c–d, 4–5 http://zoobank.org/ 7050EC0C-7AE5-439C-AE76-3997997ABEFC   Material examined.  Holotype, USNM 1013069, Tanaga Passwest of Tanaga Island, Andreanof Islands, Aleutian Islands, Bering Sea, 51°N 137.64'N 178°19.2'W, depth  375 m, bottom temp. 4 °C, F/ V Pacific Knight, cruise 94-1, haul 121,  5 July, 1994 ( Figure 2c); paratypes USNM 1004615 Amchitka Pass, Rat Islands, Aleutian Islands, 51.2885°N 178.947°E, depth  347–391 m, field number AB01-65, coll. McCluskey, P.( Figure 2d); USNM 1010177, Semisopochnoi Island, Rat Islands, Aleutian Islands, West Bering Sea, 52.1756°N 179.608°E, depth  128–135 m, R/ V Dominator, st. 135,  24 June 2000.   Description. The holotypeis 7 cmwide and 10 cmhigh ( Figure 2c). The stem is 2 cmlong and about 6 mmwide. The polyps are about 9–10 mmhigh and 5–6 mmwide. Tentacles without sclerites. Polyps with poorly developed clubs ( Figure 4a), up to 0.60 mmlong and spindles up to 0.90 mmlong ( Figure 4b–c); all with simple tubercles. The coenenchyme with smaller spindles, 0.20–0.50 mmlong, with more developed tubercles ( Figure 4c).   Etymology. From the Latin  gigantea, giant or very large, referring to the large polyps and sclerites  Colour.The preserved holotypeis white, all sclerites are colorless.   Distribution. Aleutian Islands, both East and West Bering Sea in 128–391 m( Figure 1a).   Remarks.The colony of USNM1004615 is rather slender and has smaller polyps than the holotype( Figure 2d) but its polyp sclerites ( Figure 5a–b) are very much like those of the holotype. The coenenchyme has smaller spindles, up to 0.20 mmlong, and some capstans ( Figure 5c).  Calcigorgia gigantea  sp. n.is unique in the genus by its large polyps and sclerites. 2028137479 2000-06-24 USNM, AB V Pacific Knight & McCluskey, P. & V Dominator West Bering Sea 375 52.1756 Tanaga Pass 34 179.608 Aleutian Islands 5 6 USNM 1013069, USNM 1004615, AB01-65, USNM 1010177 2 holotype