original descriptionCostello, H. M.; Costello, D. P. (1938). A new species of Polychoerus from the Pacific coast. Ann Mag Nat Hist, S.11 1:148-155, available online athttps://doi.org/10.1080/00222933808526747[details]
additional sourceCostello, H. M.; Costello, D. P. (1938). Copulation in the acoelous turbellarian Polychoerus carmelensis. <em>Biological Bulletin.</em> 75: 85-98., available online athttps://doi.org/10.2307/1537675[details] Available for editors
Present Inaccurate Introduced: alien Containing type locality