Calcigorgia gigantea, Matsumoto & Van Ofwegen & Bayer, 2019

Matsumoto, Asako K., Van Ofwegen, Leen P. & Bayer, Frederick M., 2019, A revision of the genus Calcigorgia (Cnidaria, Octocorallia, Acanthogorgiidae) with the description of three new species, Zootaxa 4571 (1), pp. 1-27 : 6

publication ID

https://doi.org/ 10.11646/zootaxa.4571.1.1

publication LSID

lsid:zoobank.org:pub:D1268894-FADE-482B-83F8-FD6B1C2619C1

DOI

https://doi.org/10.5281/zenodo.5698525

persistent identifier

https://treatment.plazi.org/id/7050EC0C-7AE5-439C-AE76-3997997ABEFC

taxon LSID

lsid:zoobank.org:act:7050EC0C-7AE5-439C-AE76-3997997ABEFC

treatment provided by

Plazi

scientific name

Calcigorgia gigantea
status

sp. nov.

Calcigorgia gigantea View in CoL sp. n.

Figures 1a View FIGURE 1 , 2 View FIGURE 2 c–d, 4–5

http://zoobank.org/ 7050EC0C-7AE5-439C-AE76-3997997ABEFC

Material examined. Holotype, USNM 1013069 About USNM , Tanaga Pass west 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 View FIGURE 2 ); paratypes USNM 1004615 About USNM 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 View FIGURE 2 ); USNM 1010177 About USNM , 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. GoogleMaps

Description. The holotype is 7 cm wide and 10 cm high ( Figure 2c View FIGURE 2 ). The stem is 2 cm long and about 6 mm wide. The polyps are about 9–10 mm high and 5–6 mm wide. Tentacles without sclerites. Polyps with poorly developed clubs ( Figure 4a View FIGURE 4 ), up to 0.60 mm long and spindles up to 0.90 mm long ( Figure 4 View FIGURE 4 b–c); all with simple tubercles. The coenenchyme with smaller spindles, 0.20–0.50 mm long, with more developed tubercles ( Figure 4c View FIGURE 4 ).

Etymology. From the Latin gigantea , giant or very large, referring to the large polyps and sclerites

Colour. The preserved holotype is white, all sclerites are colorless.

Distribution. Aleutian Islands, both East and West Bering Sea in 128–391 m ( Figure 1a View FIGURE 1 ).

Remarks. The colony of USNM1004615 is rather slender and has smaller polyps than the holotype ( Figure 2d View FIGURE 2 ) but its polyp sclerites ( Figure 5 View FIGURE 5 a–b) are very much like those of the holotype. The coenenchyme has smaller spindles, up to 0.20 mm long, and some capstans ( Figure 5c View FIGURE 5 ). Calcigorgia gigantea sp. n. is unique in the genus by its large polyps and sclerites.

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