Antarctoscyphus elongatus ( Jäderholm, 1904 )

Peña Cantero, Álvaro L., 2021, Additions to knowledge of the biodiversity of benthic hydroids (Cnidaria: Hydrozoa) in the Balleny Islands (Antarctica), Zootaxa 4966 (3), pp. 321-336 : 327

Antarctoscyphus elongatus ( Jäderholm, 1904)

( Fig. 1H )

Material examined. TAN 0102/K0809, one basally broken stem 90 mm long ( NIWA 144358); TAN 0602/430, one stem 85 mm high ( NIWA 144242).

Ecology and distribution. Present material, which represents the first record of this species from the Balleny Islands, collected at depths from 70 to 292 m, off Young and Buckle islands.

Figures

FIGURE 1. Filellum antarcticum (Hartlaub, 1904): A, part of a coppinia showing gonothecal arrangement; B–C, distal part of gonothecae showing aperture (arrows). Lafoea dumosa (Fleming, 1820): D, hydrotheca and pedicel. Phialella belgicae (Hartlaub, 1904): E, hydrotheca and pedicel. Campanularia sp.: F, hydrotheca; G, distal part of pedicel, basal spherule and basal chamber with diaphragm. Antarctoscyphus elongatus (Jäderholm, 1904): H, internode with hydrotheca. Scale bar: 100 µm (B, C, G), 200 µm (A, D–F, H).