Filellum
Description
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., 2004b
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)
Notes
Files
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.5281/zenodo.206783 (DOI)
- Journal article: http://publication.plazi.org/id/FFB0CF19B712AD38FFB9C43D1B1F341D (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/0389B761B705AD2FFF2EC0601E8332FB (URL)
Biodiversity
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.