Texas Cooter vs. Texas Map Turtle

Young Texas Cooters are taken for map turtles on the Colorado and its tributaries. A: An orange-yellow J-shaped mark in the Texas Map Turtle; broad yellow bars and blotches, no J in the Texas Cooter. B: A row of low knobs down the middle in the Texas Map Turtle; smooth, no knobs in the Texas Cooter. C: Small: males 2.5 to 3.5 in, females to 8.5 in in the Texas Map Turtle; big: 7 to 13 in in the Texas Cooter.

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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