Oswaldella elongata Pena Cantero, Garcia Carrascosa & Vervoort 1995

• Main Authors: Molinero, A. González, Peña Cantero, A. L.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Leptothecata; Kirchenpaueriidae; Oswaldella; Oswaldella elongata; Antarctic; Pena; Molinero; Clerke Rocks; Antarc*; Antártida
• Online Access: https://zenodo.org/record/6107445; https://doi.org/10.5281/zenodo.6107445

Oswaldella elongata Peña Cantero, García Carrascosa & Vervoort, 1995 (Figs 3, 16 C, 17 C, 19 C) Material examined. Spanish Antarctic Expedition Antártida 8611: Stn 161, 14 December 1986, 54°53.80'– 54 °54.60'S, 34 °49.60'– 34 °47.70'W (South Georgia, Clerke Rocks), 150–250 m (Department of Zoology, University of Valencia, ANT 161); Stn 182, 18 December 1986, 54°33.60’– 54 °33.40’S, 35 °48.20’– 35 ° 44.40’W (South Georgia), 86–176 m (Department of Zoology, University of Valencia, Coel. n° 3 /ANT 182). Description. Monosiphonic, unbranched stems, up to 210 mm high, divided into internodes. Angle between cauline apophyses and stem ca. 45 °. Cauline apophyses with four nematophores: two axillary ones, each emerging through slot-shaped hole in the perisarc, and other two nematophores, each emerging through “mamelon” (Fig. 3 B–C). Hydrocladia bifurcated (Fig. 3 A). First hydrocladial internode bifurcated, with two similar prongs (Fig. 3 A). Mesial inferior nematophore emerging from strongly marked swelling at proximal third of internode (Fig. 3 D–E); deprived of nematotheca (Fig. 3 D–E). Hydrotheca elongate, tubular, placed on middle of internode (Fig. 3 A, D–E). Adcauline wall mostly adnate (Fig. 3 D–E). Abcauline hydrothecal wall slightly convex. Hydrothecal aperture circular, even and adcaudally directed (Fig. 3 E). Gonothecae unknown. 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 406, DOI:10.11646/zootaxa.4052.4.1, http://zenodo.org/record/245887