original description
(of Polycystis yagana Marcus, 1954) Marcus, Er. (1954). Reports of the lund university Chile expedition 1948-49. 11. <em>Lunds Universitets Arsskrift.</em> 49: 3-114. (look up in IMIS)
page(s): 19-20, Figs. 18-21 [details] Available for editors
new combination reference
Artois, T. J.; Schockaert, E. R. (1998). A cladistic re-asessment of the Polycystis species complex (Polycystididae, Eukalyptorhynchia). <em>Hydrobiologia.</em> 383: 97-102. [details] Available for editors
new combination reference
(of Macrorhynchus yagana (Marcus, 1954) Evdonin, 1977) Evdonin, L. A. (1977). Monograph of the Turbellaria Kalyptorhynchia in the fauna of the USSR and adjacent areas. [In Russian]. Fauna USSR. Turbellaria, Vol 1, Pt 1. Fauna USSR (NS), 115:1-400 [details] Available for editors
From editor or global species database
Habitat tide pool in eulittoral zone [details]