Diamondback Terrapin

得克萨斯地图龟（Graptemys versa）是一种小型至中型地图龟，仅分布于美国得克萨斯州。其种加词“versa”意为“改变”，指其头部斑纹与其他亚种的差异。该物种归属一度有争议，现稳定为独立种。

Lineage: Turtles and Tortoises (TESTUDINES) > Cryptodira (CRYPTODIRA) > Durocryptodira (DUROCRYPTODIRA) > Testudinoid Turtles Superfamily (TESTUDINOIDEA) > Pond Turtles (EMYDIDAE) > Chicken Turtles and Allies Subfamily (DEIROCHELYINAE) > Diamondback Terrapins (Malaclemys) > Diamondback Terrapin (Malaclemys terrapin). This path helps place the taxon within its family, genus, or species-level context.