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batrachos
at Wed Apr 23 15:37:43 2008 [ Report Abuse ] [ Email Message ] [ Show All Posts by batrachos ]
According to the USGS amphibian atlas (http://igsaceeswb00.er.usgs.gov:8080/mapserver/naa/), no.
A displaced individual is always possible, but a naturally occurring population of H. andersoni in Michigan would give it one of the strangest biogeographic distribution patterns I've ever heard of. It is possible that an old specimen of some other Michigan frog in a museum somewhere was misidentified as H. andersoni, from the days when decent field manuals were unavailable. This has happened with H. squirella in Illinois (misidentified Pseudacris sp.) and Ambystoma jeffersonianum in Tennessee (misidentified Plethodon sp.)
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