Red-eared Turtle
This is a Red-eared Turtle (Trachemys scripta elegans) with a melanistic color variation. According to “Amphibians and Reptiles of Indiana” by Sherman A. Minton, Jr., the dark pigment infiltrates and obliterates the classic red head stripe. This usually only happens with large male red-eared turtles, but can happen to a lesser degree with females.
They are also known as; red-eared slider turtle, red-eared slider, red-eared terrapin, red-ear, slider, pond slider, common slider, tortuga gravada (Spanish), roodwangschildpad (Dutch), tortue à oreille rouges (French), punakorvakilpikonna (Finnish), sarkanausu brunurupucis (Latvian), rotwangen-schmuckschildkroete (German), rotwangen-schmuckschildkrte (German), Buchstaben-Schmuckschildkröte (German), krasnoukhaya cherepakha (Russian), punakõrv-ilukilpkonn (Estonian), raudonausis vežlys (Lithuanian), rödörad vattensköldpadda (Swedish), rødøreterrapin (Norwegian), rødøret terrapin (Danish), zólw czerwonolicy (Polish), zólw czerwonouchy (Polish), zólw ozdobny (Polish), nordamerikansk terrapin (Danish), raudonskruostis vežlys (Lithuanian).