Plate 3. Apertural views of assorted North American freshwater gastropods. Top Row (L-R): Planorbella trivolvis, USNM[removed], Joliet, Illinois; Viviparus subpurpureus, ANSP[removed], Wabash River, Indiana; Vorticifex effus

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Date: 2013-02-04 07:15:31 Elimia Lithasia Viviparus Rugged hornsnail Pleurocera Geniculate river snail Planorbella Freshwater snail Pleuroceridae Phyla Protostome		Plate 3. Apertural views of assorted North American freshwater gastropods. Top Row (L-R): Planorbella trivolvis, USNM[removed], Joliet, Illinois; Viviparus subpurpureus, ANSP[removed], Wabash River, Indiana; Vorticifex effus Add to Reading List Source URL: fl.biology.usgs.gov Download Document from Source Website File Size: 353,85 KB Share Document on Facebook