Free Images: "bestof:Ptychobranchus phaseolus (Hildreth), from Obey River, Ky, upper pair; Rock pocketbook, Arcidens confragosus (Say.jpeg check categories 26 August 2015 4"
FMIB_38271_Kidney-shell,_Ptychobranchus_phaseolus_(Hildreth),_from_Obey_River,_Ky,_upper_pair;_Rock_pocketbook,_Arcidens_confragosus_(Say.jpeg
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