original description
Karling, T. G. (1956). Morphologisch-histologische Untersuchungen an den männlichen Atrialorganen der Kalyptorhynchia (Turbellaria). <em>Arkiv för Zoologi.</em> 9: 187-277.
page(s): 224 [details] Available for editors [request]
additional source
Artois, T. J.; Schockaert, E. R. (2005). Primary homology assessment of structures in the female atrial system among species of the Polycystididae (Rhabditophora, Eukalyptorhynchia). <em>Invertebrate Biology.</em> 124(2): 109-118., available online at https://doi.org/10.1111/j.1744-7410.2005.00013.x [details] Available for editors [request]
From editor or global species database