Alexandrella polarsterni

• Main Authors: d'Acoz, Cédric d'Udekem, Verheye, Marie L.
• Format: Text
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Stilipedidae; Alexandrella; Alexandrella polarsterni; Antarctic; Southern Ocean; The Antarctic; Weddell Sea; Weddell; Argentina; Elephant Island; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.3857547; https://zenodo.org/record/3857547

Alexandrella polarsterni (Berge & Vader, 2005) Bathypanoploea polarsterni Berge & Vader, 2005b: 81–83, fig. 1. Bathypanoploea polarsterni – Berge & Vader 2005c: 5, figs 7–9. Alexandrella sp. n. – Rauschert & Arntz 2015: 79, pl. 72. Distribution Northwest of Elephant Island, 60°54.60ʹ S, 55°45.90ʹ W, 235 m (holotype); southwestern Atlantic, off Argentina (off the province of Río Negro), 40°14ʹ06″ S, 55°24ʹ07″ W, 1475 m (paratype) (Berge & Vader 2005b, 2005c). Remarks The conspecificity between the holotype of Alexandrella polarsterni collected off Elephant Island at 235 m and the paratype collected off Argentina at 1475 m looks a priori suspect, based on the differences in location and depth, but cannot be refuted herein. The photograph of “ Alexandrella sp. nov.” given by Rauschert & Arntz (2015) matches very well with the figures of Berge & Vader (2005b, 2005c), especially for the shape of the mid-dorsal carina of urosomite 1; hence this specimen is identified as such. Rauschert & Arntz (2015) do not indicate the coordinates of their specimen, but in an early draft of their book made available to the authors, the following information was given: ANT-XXI/2, stn 145, 400 m, 7 mm. The coordinates of the station 145-1 (epibenthic sledge) are: 70°56.99ʹ S, 10°48ʹ26″ W to 70°56.97ʹ S, 10°47.7ʹ W [eastern shelf of the Weddell Sea], 402– 405 m. : Published as part of d'Acoz, Cédric d'Udekem & Verheye, Marie L., 2017, Epimeria of the Southern Ocean with notes on their relatives (Crustacea, Amphipoda, Eusiroidea), pp. 1-553 in European Journal of Taxonomy 359 on pages 173-174, DOI: 10.5852/ejt.2017.359, http://zenodo.org/record/3855694 : {"references": ["Berge J. & Vader W. 2005 a. The amphipod genus Alexandrella (Amphipoda, Stilipedidae): taxonomic status, allometric growth and description of two new species. Journal of Natural History 39 (17): 1327 - 1346. https: // doi. org / 10.1080 / 00222930400015566", "Berge J. & Vader W. 2005 b. On the taxonomic status of the Antarctic amphipod crustacean genera Eclysis (Astyridae) and Bathypanoploea (Stilipedidae), with partial redescription of their type species and description of Bathypanoploea polarsterni n. sp. Organisms, Diversity & Evolution 5: 81 - 83. https: // doi. org / 10.1016 / j. ode. 2004.05.002", "Berge J. & Vader W. 2005 c. On the taxonomic status of the Antarctic amphipod crustacean genera Eclysis (Astyridae) and Bathypanoploea (Stilipedidae), with partial redescription of their type species and description of Bathypanoploea polarsterni n. sp. Organisms, Diversity & Evolution 5, Electronic Supplement 3: 1 - 15. Available from http: // www. senckenberg. de / odes / 05 - 03. htm [accessed 27 Sep. 2016].", "Rauschert M. & Arntz W. E. 2015. Antarctic Macrobenthos. A Field Guide of the Invertebrates Living at the Antarctic Seafloor: Arntz & Rauschert Selbstverlag, Deichweg."]}