The Coastal Plains Toad is found along the coast of the Gulf of Mexico. They used to be part of the Gulf Coast Toad (Incilius valliceps) species but was split off due to genetic testing. It is still kinda confusing even though it happened over 20 years ago. Additionally, they are one of the largest toads native to the United States and are known for their defined cranial crest. The Coastal Plains Toad is notable from the other toads in the family Bufonidae because its in a different genus Incilius. This genus has a more defined cranial crest than Anaxyrus. This one lives in a pond in our back yard.