Type material of mollusk taxa named by George Morgan Davis (1938–2024) at the Academy of natural Sciences of Philadelphia

Type material and type localities are listed for 27 species-group taxa named by George Morgan Davis. All are freshwater gastropods and for all but two of these, there is type material in the Academy of Natural Sciences of Philadelphia. Type material of 25 taxa is illustrated herein. Davis always restricted the type series of taxa that he named to the type locality. Type material might have been cited in the original work by catalogue number or locality and, similarly, material was excluded from the type series of some taxa by citation of catalogue number or locality. For some taxa the published coordinates are corrected herein.