Prorhynchus stagnalis Schultze, 1851
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publication ID |
https://doi.org/ 10.6620/ZS.2021.60-22 |
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DOI |
https://doi.org/10.5281/zenodo.12824858 |
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persistent identifier |
https://treatment.plazi.org/id/7B330457-FFE9-9877-A0BD-799EC6FED175 |
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treatment provided by |
Felipe |
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scientific name |
Prorhynchus stagnalis Schultze, 1851 |
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Prorhynchus stagnalis Schultze, 1851 View in CoL ( Fig. 13D–F View Fig )
Synonyms: Planaria serpentine Dalyell, 1853 .
Prorhynchus fluviatilis Leydig, 1854 .
Prorhynchus serpentinus Leuckart, 1859 .
Opistomum serpentina Johnston, 1865 .
Prorhynchus rivularis Fedschenko, 1872 .
Prorhynchus tenuis Girard, 1894 .
Studied material: Three individuals studied alive, two of them were whole mounted (MZUSP PL 2255– 2256).
Localities: Site 2 (9 / 10/ 2018) and Site 3 (24/06/2018), associated with benthal and phytal microhabitats.
Description: Body 5.1 mm long (n = 2) and 0.5 mm wide (n = 2), whitish. Intestinal region is dark ( Fig 13D View Fig ). The stylet is in the anterior region of the body ( Fig. 13E View Fig ), surrounded concentrically by six bars, which form an inner structure and by ten larger bars (± 51.6 μm long), which form an outer structure. The stylet is ± 123 μm in length, gradually tapers to the distal region and ends in a sharped tip ( Fig. 13F View Fig ).
Taxonomic remarks: The morphological features are according to Steinböck (1927), Farías et al. (1995) and Marcus (1944). However, this species is considered a complex species owing to its wide distribution and the wide range of variation of stylet dimensions recorded worldwide ( Tyler et al. 2018 and references therein).
Distribution: Cosmopolitan (see Tyler et al. 2016).
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.