Additional Distribution Records for Freshwater Snails in Kansas, with Comments on a ReversedCampeloma crassulum

Freshwater gastropods are one of the most imperiled groups of organisms in North America (Brown et al. 2008; Lysne et al. 2008). Of the seven gill-breathing operculate snails (Gastropoda: Prosobranchia) reported from Kansas, two are considered extirpated and the other five have shown substantial range reductions during the past century (Angelo et al. 2002). The primary causes for this decline include anthropogenic disturbances, sporadic shifts in climate, and evolving stream drainage patterns (Angelo et al. 2002; Brown et al. 2008).