Schizotricha nana Pena Cantero, Svoboda & Vervoort 1996

• Main Authors: Peña Cantero, Álvaro L., Marzal, Marina Fresneda
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Leptothecata; Halopterididae; Schizotricha; Schizotricha nana; Antarc*; Antarctic; Antarctica; East Antarctica
• Online Access: https://doi.org/10.5281/zenodo.6494466; http://treatment.plazi.org/id/03AC2855FF87FFB8E7FE799C6A5A2F73

Schizotricha nana Peña Cantero, Svoboda & Vervoort, 1996 (Fig. 3H) Schizotricha nana —Peña Cantero & Vervoort, 1999: 367 (synonymy). Material examined. 63EV314 , several stem fragments up to 250 mm long, with gonothecae (IK–2009–0483). Remarks. Species easily distinguishable amongst the Antarctic species of the genus by the low, as high as wide, hydrothecae (Fig. 3H). Only Schizotricha falcata Peña Cantero 1998 also has low hydrothecae, but in this species stems are unbranched and there are no ahydrothecate internodes; S. nana is characterized by having branched stems and ahydrothecate internodes. Measurements (in µm). Hydrotheca : height 145.2±26.8 (n=21), range 110–200; diameter at aperture 137.1±23.2 (n=17), range 100–180. Ecology and distribution. Our material was collected at depths from 423 to 433 m, with gonothecae in January. Circum-Antarctic distribution (Peña Cantero et al. 1996). 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 page 133, DOI:10.11646/zootaxa.4441.1.7, http://zenodo.org/record/1301927