Oswaldella garciacarrascosai Pena Cantero, Svoboda & Vervoort 1997
Creators
Description
Oswaldella garciacarrascosai Peña Cantero, Svoboda & Vervoort, 1997
(Figs 6, 16 F, 17F, 19F)
Material examined. New Zealand Antarctic Expedition TAN0802: Stn 180, Tangaroa, 29 February 2008, 69.4318°S, 178.8195°W (off Cape Adare, Ross Sea,), 447–455 m (NIWA 37896).
Description. Monosiphonic, unbranched stems, up to 70 mm high, divided into internodes. Angle between cauline apophyses and stem ca. 45°. Cauline apophyses with three nematophores, two axillary ones (Fig. 6 B), each emerging through simple hole in perisarc, and a third nematophore emerging through ‘mamelon’ (Fig. 6 A–B).
Hydrocladia unbranched (Fig. 6 A) or bifurcated. Mesial-inferior nematophore emerging from strongly marked swelling at proximal third of internode (Fig. 6 D); without nematotheca (Fig. 6 C–D). Hydrotheca placed on middle of internode (Fig. 6 A, C–D). Hydrotheca elongate. Adcauline wall mostly adnate, but with a distinct free portion (Fig. 6 D). Abcauline wall almost straight, but slightly convex basally and typically with slight concavity just under hydrothecal rim (Fig. 6 C–D). Hydrothecal aperture circular, perpendicular to long axis of internode, rim even (Fig. 6 C–D).
Gonothecae fusiform. Male gonotheca with circular, subterminal aperture. Female gonotheca with wide, circular, distal opening (Fig. 6 E).
Remarks. Until now only mature male gonothecae and immature female ones were known (cf. Peña Cantero et al. 1997); we have found mature female gonothecae (Fig. 6 E).
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Kirchenpaueriidae
- Genus
- Oswaldella
- Kingdom
- Animalia
- Order
- Leptothecata
- Phylum
- Cnidaria
- Scientific name authorship
- Pena Cantero, Svoboda & Vervoort
- Species
- garciacarrascosai
- Taxon rank
- species
- Taxonomic concept label
- Oswaldella garciacarrascosai Cantero, 1997 sec. Molinero & Cantero, 2015
References
- Pena Cantero, A. L., Svoboda, A. & Vervoort, W. (1997) Species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa) from recent antarctic expeditions with R. V. ' Polarstern', with the description of eight new species. Zoological Journal of the Linnean Society, 119, 339 - 388. http: // dx. doi. org / 10.1111 / j. 1096 - 3642.1997. tb 00140. x