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