Oswaldella bifurca Hartlaub 1904 ...

• Main Authors: Molinero, A. González, Peña Cantero, A. L.
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Leptothecata; Kirchenpaueriidae; Oswaldella; Oswaldella bifurca; Antarctic; Ross Sea; Molinero; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.6107440; https://zenodo.org/doi/10.5281/zenodo.6107440

Oswaldella bifurca Hartlaub, 1904 (Figs 1, 16 A, 17A, 19A) Material examined. United States Antarctic Research Program (USARP): Stn 32/2095, Eltanin, 3 February 1968, 76°04’– 76°05’S, 164°46’– 164°51’W (Ross Sea, center of sea), 513–550 m (USNM 1003302). Description. Monosiphonic, usually unbranched stems, up to 60 mm high, divided into internodes. Angle between cauline apophyses and stem ca. 70°. Cauline apophyses with one or two axillary nematophores emerging through simple perisarc holes (Fig. 1 B–C). Hydrocladia much branched (Fig. 1 A); branching symmetrical, up to the fourth-order. First hydrocladial internode bifurcated, with two similar prongs (Fig. 1 A–B). Mesial superior nematophore emerging above adcauline hydrothecal wall. Mesial inferior nematophore located on a distinct elevation at lower third of internode; without nematotheca (Fig. 1 D–F). Distal hydrocladial internodes with sharp distal end (Fig. 1 A). Hydrothecae placed on basal half or third of hydrocladial internodes. Hydrotheca low, ... : Published as part of Molinero, A. González & Peña Cantero, A. L., 2015, SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus, pp. 401-441 in Zootaxa 4052 (4) on page 403, DOI: 10.11646/zootaxa.4052.4.1, http://zenodo.org/record/245887 ...