Terrapin /(?)/

Ter·ra·pin

Terrapin

n.
  1. Any one of numerous species of tortoises living in fresh and brackish waters. Many of them are valued for food. (Zool.)

Phrases & Compounds
Alligator terrapin
the snapping turtle.
Mud terrapin
any one of numerous species of American tortoises of the genus Cinosternon.
Painted terrapin
the painted turtle. See under Painted.
Speckled terrapin
a small fresh-water American terrapin (Chelopus guttatus) having the carapace black with round yellow spots; -- called also spotted turtle.