Baker, Frank Collins, 1945. The molluscan family Planorbidae. Collation, revision, and additions by Harley Jones Van Cleave. The University of Illinois Press, Urbana. (Inernet Archive)(Biodiversity Heritage Library.org)(ヒラマキガイ科のモノグラフで、科の総論と北米産各種についての図説がある)
biodiversitylibrary.org
Baker, Frank Collins, 1945. The molluscan family Planorbidae. Collation, revision, and additions by Harley Jones Van Cleave. The University of Illinois Press, Urbana. (Inernet Archive)(Biodiversity Heritage Library.org)(ヒラマキガイ科のモノグラフで、科の総論と北米産各種についての図説がある)