Alcyonium antarcticum Wright & Studer 1889

• Main Authors: Schejter, L., Genzano, G., Pérez, C. D., Acuña, F., Cordeiro, R. T. S., Silva, R. A., Garese, A., Bremec, C. S.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2020
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Anthozoa; Alcyonacea; Alcyoniidae; Alcyonium; Alcyonium antarcticum; Antarc*; Antarctic; Antarctic Peninsula; Antarctica; Franklin Island; Ross Island; Ross Sea; Seymour Island
• Online Access: https://doi.org/10.5281/zenodo.4425902; http://treatment.plazi.org/id/03E087D9FFE7FFA3FF51FCF6FCC6C12A

Alcyonium antarcticum Wright & Studer, 1889 Material examined: BBB 2016: St. 23. Distribution: As A. paessleri May, 1899 (Verseveldt & Ofwegen 1992): off Río de la Plata (38°06’S, 55°13’W; 440–480 m) (Castro 1990); Buenos Aires (38°58’S, 55°17’W; 595–642 m), Patagonia (44°19’S, 59°52’W; 183–366 m), (47°09’S, 60°38’W; 424–428 m), Strait of Magellan (150 m) (Verseveldt 1967); Chile (May 1899); South Georgia Islands (Pérez & Zamponi 2004); Seymour Island (150 m) (Antarctic Peninsula) (Molan- der 1929). As A. antarcticum : Hear Island (Australia) (135m), off South Georgia (54°21’S, 35°58’W, 144–164 m) and Cape Armitage, Ross Island, Antarctica (Wright & Studer 1889; Verseveldt & Ofwegen 1992); Franklin Island (76°10’S, 168°30’E, 79 m) (Ross Sea) (Hickson 1902); off Mt. Erebus (Ross Sea) (328 m), Ross Sea (42–407 m) (Hickson 1907); Burdwood bank (Molander 1929; present study). This is the first record at MPA Namuncurá I, Burdwood bank. Remarks: Colonies of A. antarcticum examined are similar to A. sollasi in growth form, but differ in having capstans sparsely tuberculate and tentacle bases without clubs. Published as part of Schejter, L., Genzano, G., Pérez, C. D., Acuña, F., Cordeiro, R. T. S., Silva, R. A., Garese, A. & Bremec, C. S., 2020, Checklist of Benthic Cnidaria in the SW Atlantic Ocean (54 ºS- 56 ºS), pp. 201-239 in Zootaxa 4878 (2) on page 219, DOI:10.11646/zootaxa.4878.2.1, http://zenodo.org/record/4424884