Filellum

• Main Authors: Marques, Antonio C., Peña, Álvaro L., Miranda, Thaís P., Migotto, Alvaro E.
• Format: Text
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Leptothecata; Lafoeidae; Filellum; Alvaro; Antarctic; Kendrick; Pena; Antarc*; Archipelago; Alaska
• Online Access: https://dx.doi.org/10.5281/zenodo.6191011; https://zenodo.org/record/6191011

Key for the identification of the fertile specimens of Filellum 1 Abcauline wall of the adnate part of the hydrotheca with transverse striae........................................ 2 - Abcauline wall of the adnate part of the hydrotheca without transverse striae....................................... 7 2 Defensive tubes of the coppinia forming a protective structure over the gonothecae................................. 3 - Defensive tubes of the coppinia not forming a protective structure over the gonothecae........... F. nitidum Watson, 2005 3 Defensive tubes arising amongst the gonothecae. Gonotheca with short distal neck with everted rim.................... 4 - Defensive tubes exclusively on the periphery of the gonothecal mass and arching over the gonothecae................. 5 4 Defensive tubes forming a shield-shaped structure (canopy)............................... F. serratum (Clarke, 1879) - Defensive tubes simply arching over gonothecae............................. F. magnificum Peña Cantero et al. , 2004 b 5 Gonothecae without distal neck................................................. F. antarcticum (Hartlaub, 1904) - Gonothecae with distal neck............................................................................. 6 6 Coppinia bud-shaped. Gonothecae flask-shaped. Hydrothecal aperture 140–168 µm. Hydrothecal free part 320–420 µm.................................................................................... F. conopeum Watson, 2003 - Coppinia corbula-shaped. Gonothecae irregular. Adnate hydrothecal part short or absent. Hydrothecal aperture 180–250 µm. Hydrothecal free part 650–1875 µm..................................................... F. bouvetensis sp. nov. 7 Gonothecae without juxtaposed walls. Defensive tubes absent................ F. disaggregatum Peña Cantero et al. , 1998 - Gonothecae with juxtaposed walls. Defensive tubes present.................................................... 8 8 Hydrothecae and hydrorhiza forming a continuous layer on the substrate.......................................... 9 - Hydrothecae and hydrorhiza spaced and distinct from each other............................ F. serpens (Hassall, 1848) 9 Gonothecae fusiform............................................................. F. adhaerens (Nutting, 1901) - Gonothecae polygonal....................................................... F. parasiticum (Antsulevich, 1987) : Published as part of Marques, Antonio C., Peña, Álvaro L., Miranda, Thaís P. & Migotto, Alvaro E., 2011, Revision of the genus Filellum Hincks, 1868 (Lafoeidae, Leptothecata, Hydrozoa), pp. 1-28 in Zootaxa 3129 on page 24, DOI: 10.5281/zenodo.206783 : {"references": ["Watson, J. E. (2005) Hydroids of the Archipelago of the Recherche and Esperance, Western Australia: Annotated list, redescription of species and description of new species. In: Weills, F. E., Walker, D. I. & Kendrick, G. A. (Eds), The marine flora and fauna of Esperance, Western Australia. Western Australian Museum, Perth, pp. 495 - 612.", "Clarke, S. F. (1879) Report on the Hydroida collected during the Exploration of the Gulf Stream and Gulf of Mexico by Alexan- der Agassiz, 1877 - 78. Bulletin of the Museum of Comparative Zoology at Harvard College, in Cambridge, 5, 239 - 252.", "Pena Cantero, A. L., Svoboda, A. & Vervoort, W. (2004 b) Antarctic hydroids (Cnidaria, Hydrozoa) of the families Campanulinidae, Lafoeidae and Campanulariidae from recent Antarctic expeditions with R. V. Polarstern, with the description of a new species. Journal of Natural History, 38, 2269 - 2303.", "Hartlaub, C. (1904) Hydroiden. Resultats du Voyage du S. Y. Belgica. Zoologie, 7, 1 - 19.", "Pena Cantero, A. L., Garcia Carrascosa, A. M. & Vervoort, W. (1998) On the species of Filellum Hincks, 1868 (Cnidaria: Hydrozoa) with the description of a new species. Journal of Natural History, 32, 297 - 315.", "Hassall, A. H. (1848) Definitions of three new British zoophytes. Zoologist, 6, 2223.", "Nutting, C. C. (1901) Papers from the Harriman Alaska Expedition. XXI. The hydroids. Proceedings of the Washington Academy of Sciences, 3, 157 - 216.", "Antsulevich, A. E. (1987) Gidroidy shel'fa Kuril'skykh ostrovov (Hydroids from the shelf waters of Kurile Islands). Zoologicheskii Institut, Akademiya Nauk SSSR, Leningrad, 165 pp."]}