Eriocheir sinensis Photo credit: Neil Cummings/Flickr
Hemimysis anomala Photo credit: © Jean-François Cart/Flickr
Corbicula fluminea Photo credit: Illinois State Museum
Orconectes immunis Photo credit: © Mark Lethaby/Flickr
Common: Species found in at least 1/3 of Pennsylvania counties.
Uncommon: Species found in Pennsylvania, but not widespread (i.e., found in less than 1/3 of Pennsylvania counties.)
Not present: Species not yet found in Pennsylvania.
Found only in its PA native range: This species is native to parts of Pennsylvania; if found in other parts of the state, it may be suspected of being an invasive species.
*Status column last updated in August 2016.