original description
Brusa, F.; Damborenea, C.; Noreña, C. (2003). A new species of Gieysztoria (Platyhelminthes, Rhabdocoela) from Argentina and a kinship analysis of South American species of the genus. Zoologica Scripta, 32:449-457
page(s): 450-453, Figs 1-3 [details] Available for editors 
additional source
Reyes, J.; Binow, D.; Vianna, R. T.; Martins, S. E. (2019). First report of <em>Gieysztoria falx</em> Brusa, Damborenea & Noreña, 2003 (Platyhelminthes: Rhabdocoela) in southern Brazil. <em>Zootaxa.</em> 4706(3): 494-496., available online at https://doi.org/10.11646/zootaxa.4706.3.10 [details] Available for editors 
From editor or global species database