Occurrences CommentsIt occurs in ponds, creeks and the Savannah River on property of the Savannah River Power Plant, Aiken, South Carolina (Wood, 1982). In Georgia, this species is distributed across much of the eastern and northern Atlantic Coastal plain (Dillon et al., 2006). In South Carolina (Dillon and Stewart, 2003), it occurs in the Southeastern Plains and Mid-Atlantic Coastal Plains. In North Carolina (Dillon et al., 2006), it occurs across the eastern Atlantic Coastal Plains. In Alabama, it is common but restricted to the Tennessee River system (Mirarchi, 2004). Subspecies intertexta is widely distributed throughout the Florida peninsula and extending northeast along the coastal plain to southeastern North Carolina; while in western Florida it intergrades with Planorbella trivolvis lenta (Thompson, 1999). Pilsbry (1934) lists subspecies intertexta from Long Pine Key, in the southern Everglades, throughout peninsular Florida and north along the coast to Lake Waccamaw, North Carolina. In the Cuyahoga Valley National Park (between Cleveland and Akron, Ohio), this species was recently found in the shallow littoral zone of ponds with a few individuals in pool areas of tributaries in the park (Smith et al., 2002). It is throughout the Salt Fork Big Vermilion River, Illinois (Dexter, 1961). It has been documented in Alaska in the central interior and potentially other areas of the state (Baxter, 1987). Jokinen (2005) found it at Indian Sand Dunes National Lakeshore. In Indiana, Pyron et al. (2008) found it at 16 sites of 123 surveyed (mostly from Wabash drainage northward) and two historical sites (Half Moon Pond and Bass Lake) compared to Goodrich and van der Schalie (1944) who stated it was likely present statewide. It is throughout the Spring River, Missouri and Kansas (Branson, 1966). It is widely distributed throughout Missouri (Adair, Andrew, Audrain, Barry, Barton, Bollinger, Boone, Caldwell, Callaway, Carroll, Cass, Chariton, Clark, Clay, Cole, Cooper, Crawford, Dade, Dallas, Dunklin, Gasconade, Grundy, Harrison, Henry, Hickory, Holt, Howell, Iron, Jackson, Jasper, Jefferson, Johnson, Knox, Lafayette, Lincoln, Linn, Livingston, McDonald, Macon, Mississippi, Montgomery, Newton, Nodaway, Oregon, Ozark, Perry, Pettis, Pike, Platte, Pulaski, Putnam, Ralls, Randolph, Ray, Reynolds, Ripley, St. Charles, St. Louis, Saline, Scott, Shannon, Stoddard, Warren, Washington, and Wayne Cos.) (Wu et al., 1997). Freeman and Perkins (1992) documented it in Nebraska. It occurs in the White River (Gordon, 1982) and Bayou Bartholomew drainages (Minton et al., 2008), Arkansas. In Kentucky it has been documented in the Green (creek in Casey Co., Wolf Lick Creek) and Ohio River (swamp in Union Co.) drainages but is distributed statewide (Branson and Batch, 1983); and Kentuckcy (pond in Madison Co., Silver Creek, Elkhorn Creek, Lake Arlington, farm pond in Madison Co.) and Licking (Slate Creek, Fox Creek) River drainages (Branson and Batch, 1981). Branson and Batch (1987) documented it in Kentucky in the Ohio (Ballard County WMA pond, ), Licking (Townsend Creek in Bourbon Co.), Green (Roundabout Swamp in Butler Co., Crane Pond-Slough in Daviess Co.), Tennessee (East Fork Clarks River in Marshall Co.), Cumberland (Owsley Fork Lake in Jackson Co.), Hatchie-Obion (pond in Fulton Co.) and Kentucky (pond in Madison Co.) drainages. Blair and Sickel (1986) documented it in 1 of 44 sites (Prior Creek, Tennessee) surveyed in Land Between the Lakes (national recreation area between Cumberland River (Lake Berkeley) and Tennessee River (Kentucky Lake)) in Kentucky and Tennessee. In Pennsylvania, it occurs in the Delaware, Ohio, and Susquehanna basins (generally statewide) (Evans and Ray, 2010).