Lizards and toads are conspicuous in the more desert areas.
Some of the poison-secreting glands attain a greater complication of structure and are remarkable for their large size, such as the so called "parotoid" glands on the back of the head in toads and salamanders.
The larynx, which is rudimentary in most of the Caudata and in the Apoda, is highly developed in the Ecaudata, and becomes the instrument of the powerful voice with which many of the frogs and toads are provided.
of which (toads, for instance) are entirely Ivc, Inferior vena edentulous.
Every bayou contains alligators; and reptiles of various species, such as turtles, lizards, horned toads, rattlesnakes and moccasins are abundant.