Sean M. Hartzell

A Bilaterally Partitioned Colour Variant of an Appalachian Brook Crayfish ( Cambarus bartonii bartonii ) from eastern Pennsylvania

Sean M. Hartzell, 2018 .

Terrapene carolina carolina (Eastern Box Turtle): Railroad nesting

Sean M. Hartzell, 2015 .

Decline of a giant salamander assessed with historical records, environmental DNA and multi‐scale habitat data

Amber L. Pitt, S. Spear, Joseph J. Tavano, 2017 .

Life History of an Invasive Population of Allegheny Crayfish (Faxonius obscurus) in an Eastern Pennsylvania Stream

Sean M. Hartzell, 2020, Northeastern Naturalist.

First Records of the Invasive New Zealand Mudsnail (Potamopyrgus antipodarum) in the Potomac River Basin

J. Frederick, Sean M. Hartzell, 2023, Northeastern Naturalist.