Creeping Ancylid Ferrissia rivularis (Say, 1817)    
Kingdom Animalia   >   Phylum Mollusca   >   Class Gastropoda   >   Order Basommatophora   >   Family Ancylidae   >   Genus Ferrissia   

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A Creeping Ancylid in Baltimore Co., Maryland (9/30/2017). Verified by Robert Dillon (FWGNA). Photo by Robert Aguilar, SERC. (MBP list)


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