Gyratrix hermaphroditus Ehrenberg, 1831
publication ID |
https://doi.org/ 10.11646/zootaxa.4242.3.2 |
publication LSID |
lsid:zoobank.org:pub:C67937C9-844F-461E-AABB-121B9C3CE5FA |
DOI |
https://doi.org/10.5281/zenodo.5689670 |
persistent identifier |
https://treatment.plazi.org/id/03FB87EB-522E-E348-57BE-A9AFFD00DE02 |
treatment provided by |
Plazi (2017-03-13 08:22:31, last updated 2024-11-29 15:53:08) |
scientific name |
Gyratrix hermaphroditus Ehrenberg, 1831 |
status |
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Gyratrix hermaphroditus Ehrenberg, 1831 View in CoL species complex
New localities. iSimangaliso Wetland Park: Eastern Shores , Mission Rocks (28°16’49.5’’S, 32°29’06.1’’E), on small red algae from a sandy shallow rock pool in the higher eulittoral of a highly-exposed tidal area with a sandstone terrace covered with barnacles, mussels, limpets, corals, tunicates and algae, December 5, 2009 GoogleMaps ; same locality, on red algae, December 12, 2009 GoogleMaps ; same locality, in sand from a swirl hole in mid-eulittoral, December 12, 2009 GoogleMaps ; Sodwana Bay, Jesser Point (lighthouse) (27°32'28.4"S, 32°40'47.9"E) highly-exposed, steep beach, on green algae from swirl holes in rocky plateau in mid-eulittoral, December 10, 2009 GoogleMaps ; Kosi Bay estuary, eastern shore of main lake, water plants, salinity 3–4‰, December 15, 2009 (collected by Xander Combrink).
Known distribution. Cosmopolitan and euryhaline, found from pure marine to pure limnic habitats.
Material. Several specimens observed at each location, 14 specimens collected and preserved for DNAanalysis: Mission Rocks, on red algae, 1 specimen; Mission Rocks , in sand, 4 specimens ; Jesser Point , 6 specimens (including one yellow) ; Kosi Bay, 3 specimens (see Tessens 2012).
Remarks. Morphological, karyological and molecular research by (among others) Curini-Galletti & Puccinelli (1989, 1990, 1994, 1998), Puccinelli & Curini-Galletti (1987), Puccinelli et al. (1990), Timoshkin et al. (2004), and, more recently, Tessens (2012) have shown that this "species" is a large complex of cryptic species. The molecular analysis by Tessens (2012), including marine and limnic specimens of Gyratrix Ehrenberg, 1831 from all continents, reveals several clades, which can be distinguished from each other by subtle differences in the construction of stylet and sheath. The South African specimens are attributed to different clades and morphotypes. For more information, refer to Tessens (2012).
Curini-Galletti, M. C. & Puccinelli, I. (1989) Karyometric and morphological analysis of 2 sympatric marine species of the Gyratrix hermaphroditus species complex (Platyhelminthes: Kalyptorhynchia) occuring at Roscoff (Brittany, France). Hydrobiologia, 173, 63 - 68.
Ehrenberg, C. G. (1831) Animalia evertebrata exclusis insectis recensuit C. G. Ehrenberg. Series prima cum Tabularum decade prima. In: Hemprich, F. G. & Ehrenberg, C. G. (Eds.), Symbolae Physicae 2. Phytozoa Turbellaria. Officina Academica, Berolina, pp. 1 - 15.
Puccinelli, I. & Curini-Galletti, M. C. (1987) Chromosomal evolution and speciation in marine populations of Gyratrix hermaphroditus sensu lato (Platyhelminthes: Kalyptorhynchia) and in other species of the Gyratricinae. Transactions of the American Microscopical Society, 106, 311 - 320.
Tessens, B. (2012) Dealing with a taxonomic Gordian knot: phylogeny of and cryptic diversity in Gyratrix hermaphroditus Ehrenberg, 1831 (Platyhelminthes: Rhabdocoela, Kalyptorhynchia). Doctoral Thesis, Universiteit Hasselt, Hasselt, 145 pp.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Kalyptorhynchia |
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