About Hydromedusa tectifera Cope, 1870
Anatomy and morphology: Hydromedusa tectifera can reach up to 28 centimeters (11 inches) in straight carapace length. This species has a strongly keeled carapace, and can be recognized by distinct black and yellowish markings along its head and neck. As a general rule, female Hydromedusa tectifera are larger than males, while males often have larger tails.