Antarctoscyphus admirabilis Pena Cantero, Svoboda & Vervoort 1999 ...

Antarctoscyphus admirabilis Peña Cantero, Svoboda & Vervoort, 1999 (Fig. 12 A) Antarctoscyphus admirabilis Peña Cantero et al., 1999: 1742 –1745, figs 1, 7A. Material examined. Stn 17, stem fragment 65 mm long (MNCN 2.03/618); Stn 91, colony 180 mm high (NIWA 117546). Measurements (in µm). Hydro...

Full description

Bibliographic Details
Main Author: ÁLVARO L. PEÑA CANTERO
Format: Text
Language:unknown
Published: Zenodo 2017
Subjects:
Online Access:https://dx.doi.org/10.5281/zenodo.4386838
https://zenodo.org/doi/10.5281/zenodo.4386838
Description
Summary:Antarctoscyphus admirabilis Peña Cantero, Svoboda & Vervoort, 1999 (Fig. 12 A) Antarctoscyphus admirabilis Peña Cantero et al., 1999: 1742 –1745, figs 1, 7A. Material examined. Stn 17, stem fragment 65 mm long (MNCN 2.03/618); Stn 91, colony 180 mm high (NIWA 117546). Measurements (in µm). Hydrotheca: length of abcauline wall 620, length of free part of adcauline wall 680, length of adnate part of adcauline wall 70, length of adcauline wall 750, diameter at aperture 230, maximum diameter 230. Cauline internodes: 1700 x 750. Remarks. This uncommon species is easily distinguishable by its polysiphonic and branched stems, divided into short and thick internodes not arranged in zigzag, by its short, little branched, paired branches, with only a few hydrothecae and, sometimes, a few basal athecate internodes, and by the shape of the hydrotheca, cylindrical, but distinctly curved outwards, and with sharp cusps of similar development separated by deep embayments (Fig. 12 A). Ecology and distribution. Shelf ... : 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 page 36, DOI: 10.11646/zootaxa.4293.1.1, http://zenodo.org/record/828475 ...