Keywords: Naturalis Biodiversity Center - ZMA.MOLL.210034 - Quadrula quadrula (Rafinesque, 1820) - Unionidae - Mollusc shell.jpeg artwork Dimensions artwork Document type Unionidae subfamily Ambleminae Quadrula Individual count Infraspecific epithet Infraspecific rank Institution Naturalis Kind of unit artwork Kind of unit specimen shell Life stage United States Iowa Skunk River Medium artwork Nomenclatural code Scale the width of the text on the species/QR-code label is 38 mm Occurrence ID page Other fields Other versions artwork Permission license Naturalis donation CC-0 Mollusca Publication location Scientific name Quadrula quadrula Rafinesque 1820 Scientific name authorship Rafinesque 1820 Source url http //bioportal naturalis nl Specific epithet quadrula State or province Iowa Subject keywords artwork Subject keywords publication Title artwork Title publication Type status Uploaded with GWToolset Naturalis_Biodiversity_Center_-_ZMA MOLL 210034_-_Quadrula_quadrula_ Rafinesque _1820 _-_Unionidae_-_Mollusc_shell http //medialib naturalis nl/file/id/ZMA MOLL 210034/format/large Media donated by Naturalis Biodiversity Center Molluscs at Naturalis from the Zoölogisch Museum Amsterdam Quadrula quadrula |