Schizotricha auroraaustralis Peña Cantero & Marzal 2018, sp. nov. ...

• Main Authors: Peña Cantero, Álvaro L., Marzal, Marina Fresneda
• Format: Text
• Language: unknown
• Published: Zenodo 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Leptothecata; Halopterididae; Schizotricha; Schizotricha auroraaustralis; East Antarctica; George V Coast; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.6494463; https://zenodo.org/doi/10.5281/zenodo.6494463

Schizotricha auroraaustralis sp. nov. (Figs 4–5) Material examined. 63EV314 , a colony 250 mm high, with gonothecae (Holotype, IK–2009–0483). Description. Stem polysiphonic, unbranched, composed of a main aXial tube and several accompanying ones, whose number decreases distally; most distal part of stem only with main tube. Main aXial tube on one side of stem, not covered by accessory tubes for most of its length. Main tube divided into homomerous hydrothecate internodes, bearing hydrothecae and nematothecae. Secondary tubes only provided with nematothecae. Cauline internodes with a short apophysis without nematothecae (Fig. 4B). Cauline apophyses alternately arranged, forming an angle slightly smaller than 90° at basal part of stem, but opening distally, being almost in one plane at distal part. Cauline internodes (Fig. 4B) with a hydrotheca at aXil between apophysis and internode and three nematothecae: two flanking hydrothecal aperture and one infrathecal nematotheca (occasionally two). Cauline apophyses ... : Published as part of Peña Cantero, Álvaro L. & Marzal, Marina Fresneda, 2018, Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica), pp. 121-136 in Zootaxa 4441 (1) on pages 130-132, DOI: 10.11646/zootaxa.4441.1.7, http://zenodo.org/record/1301927 ...