Stimpson, W. (1865). On certain genera and families of zoophagous gasteropods. <em>American Journal of Conchology.</em> 1: 55-64, pl. 8-9., available online athttp://biodiversitylibrary.org/page/16084574 page(s): 59 [details]
MolluscaBase eds. (2024). MolluscaBase. Ptychatractus W. Stimpson, 1865. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=160034 on 2024-08-14
original descriptionStimpson, W. (1865). On certain genera and families of zoophagous gasteropods. <em>American Journal of Conchology.</em> 1: 55-64, pl. 8-9., available online athttp://biodiversitylibrary.org/page/16084574 page(s): 59 [details]
Present Inaccurate Introduced: alien Containing type locality