Rhizorhagium antarcticum Hickson & Gravely 1907 ...

• Main Author: ÁLVARO L. PEÑA CANTERO
• Format: Text
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Anthoathecata; Bougainvilliidae; Rhizorhagium; Rhizorhagium antarcticum; Antarctic; Ross Sea; New Zealand; Ritchie; Antarc*; Antarctica; antarcticus
• Online Access: https://dx.doi.org/10.5281/zenodo.4386740; https://zenodo.org/doi/10.5281/zenodo.4386740

Rhizorhagium antarcticum (Hickson & Gravely, 1907) (Fig. 2 C) Perigonimus antarcticus Hickson & Gravely, 1907: 4 –6, pl. 1 figs 1–3, pl. 4 fig. 32. Atractylis antarcticus — Ritchie, 1913: 10, 11. Gravelya antarctica — Totton, 1930: 139 –140, fig. 1a, b. Rhizorhagium antarcticum— Peña Cantero et al., 2013: 735–736, figs 2c–d, 3a–b; Peña Cantero, 2015: 377–378, figs 1C, D, 2E, 3F (synonymy). Material examined. Stn 25, a few polyps, with gonophores, on Schizotricha turqueti Billard, 1906, and numerous polyps on Staurotheca densa Peña Cantero & Vervoort, 2003 (NIWA 117473); Stn 53, a few stolonal, pedicelated polyps, on Staurotheca densa (MNCN 2.03/527); Stn 130, a few polyps on Staurotheca densa (NIWA 117474); Stn 198, one stolonal colony with four polyps on Schizotricha nana Peña Cantero, Svoboda & Vervoort, 1996 (MNCN 2.03/528). Measurements (in µm). Cnidome: microbasic euryteles (seen discharged) [range 7.0–8.0 x 3.5–4.0, mean 7.4±0.3 x 3.8±0.2 (n=10); ratio, range 1.8–2.1, mean 1.9±0.1 ... : Published as part of ÁLVARO L. PEÑA CANTERO, 2017, Benthic hydroids (Cnidaria, Hydrozoa) from the Ross Sea (Antarctica) collected by the New Zealand Antarctic expedition BioRoss 2004 with RV Tangaroa, pp. 1-65 in Zootaxa 4293 (1) on pages 9-10, DOI: 10.11646/zootaxa.4293.1.1, http://zenodo.org/record/828475 ...