New record for the freshwater snail Lithasia geniculata (Gastropoda: Pleuroceridae) in the Ohio River, IL, with comments on potential threats to the population

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Abstract

We report on a recently discovered population of the freshwater snail Lithasia geniculata (Ornate Rocksnail) (Gastropoda: Pleuroceridae) from the Ohio River, IL, the first documented occurrence for this species outside the Tennessee and Cumberland river basins. We collected 14 individuals on 26-27 August 2008 from the Ohio River, near Mound City, Pulaski County, IL. All of the specimens collected were discovered on an exposed shoal after the river dropped approximate to 0.5 m in a 24-hr period and had several (7-33) Dreissena polymorpha (Zebra Mussel) attached to their shells.
Original languageEnglish (US)
Pages (from-to)171-176
Number of pages6
JournalSoutheastern Naturalist
Volume9
Issue number1
DOIs
StatePublished - Mar 1 2010

Keywords

  • INHS

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

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