Filellum Hincks 1868

• Main Authors: Soto, Joan J., Peña, Álvaro L.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Leptothecata; Lafoeidae; Filellum; Antarc*; Antarctica; Peter I Island; Weddell Sea
• Online Access: https://doi.org/10.5281/zenodo.5934913; http://treatment.plazi.org/id/03B887B7A47BFFE7E983FE57FC6C98B9

Filellum cf. magnificum Peña Cantero, Svoboda & Vervoort, 2004 (Fig. 6g) Material examined. ANT XV/3 : 48-150 , some hydrothecae, on E. scotti 48-220 , some hydrothecae, on Sy. exochus 48-276 , several hydrothecae, on Sc. nana ANT XXI/2 : PS65/166 , numerous hydrothecae, on O. erratum PS65/274 , numerous hydrothecae, on Staurotheca nonscripta Peña Cantero, Svoboda & Vervoort, 1997. Remarks. In spite of the absence of coppinia, the size of the hydrotheca and the size of the nematocysts perfectly agree with previous reports (Peña Cantero 2010, Peña Cantero et al. 2004, Soto Àngel & Peña Cantero 2015). However, in agreement with Peña Cantero et al. (1998), the identification of infertile material of Filellum is tentative. Cnidome consisting of large microbasic mastigophores [range 17.5–19.0 x 4.5–6.0 µm, mean 18.1±0.6 x 5.4±0.8 µm (n=4)] and small microbasic euryteles [range 6.0–7.5 x 2.5–3.5 µm, mean 6.9±0.4 x 2.8±0.3 µm (n=13)]. Ecology and distribution. Previously known from 85 (Peña Cantero 2010) to 640 m (Peña Cantero et al. 2004); present material collected at depths from 236 to 758 m. Only known from Peter I Island (Peña Cantero 2010) and the Weddell Sea (Peña Cantero et al. 2004; material examined). Published as part of Soto, Joan J. & Peña, Álvaro L., 2019, Benthic hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica), pp. 1-78 in Zootaxa 4570 (1) on page 22, DOI:10.11646/zootaxa.4570.1.1, http://zenodo.org/record/2608527