Girardia tigrina (Girard, 1850)
publication ID |
https://doi.org/ 10.12651/JSR.2023.12.4.341 |
persistent identifier |
https://treatment.plazi.org/id/5D4ECB0B-0870-FF94-3BFA-FBF4FD174A08 |
treatment provided by |
Felipe |
scientific name |
Girardia tigrina (Girard, 1850) |
status |
|
2. Girardia tigrina (Girard, 1850) View in CoL ( Fig. 2 View Fig )
Ḁäū4나ƞď (ṳḡ)
Material examined. Suncheon-si (34°56′37.52″N, 127° 29′54.36″E), Korea; collected by DH Ahn on 15 August 2021; freshwater GoogleMaps .
Deposition. NIBRIV0000901588.
GenBank accession No. OR178933 for CO1.
World distribution. Endemic to the Americas (from Argentina to Canada), having been introduced in other continents (Europe, Australia, and Asia) and islands. Korea (this study).
Diagnosis. Size about 4 - 6 mm (length) × 2 mm (width); Head triangular, with bluntly pointed anterior tip. Two eyes present at the middle of the head at the level of au- ricles, positioned close together and located in broad pigment-free patches. Unpigmented auricular grooves marginally placed just posteriorly to the eyes. The dorsal surface with black-spotted pigmentation pattern.
Remarks. Girardia tigrina is anatomically very similar to G. dorotocephala . In both species, the shape of the penis papilla is rather variable and the same holds true for the course and the shape of the intrapenial sections of the sperm ducts. Usually, specimens of G. tigrina have a distinctly angled bursal canal, whereas in G. dorotocephala the canal generally curves smoothly anteriad.
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.