Source : Webster's Revised Unabridged Dictionary (1913)

Teguexin \Te*guex"in\, n. (Zo["o]l.)
   A large South American lizard ({Tejus teguexin}). It becomes
   three or four feet long, and is blackish above, marked with
   yellowish spots of various sizes. It feeds upon fruits,
   insects, reptiles, young birds, and birds' eggs. The closely
   allied species {Tejus rufescens} is called {red teguexin}.