Potamobatrachus trispinosus is a species of toadfish endemic to Brazil where it is found in the Araguaia and Tocantins Rivers.
An active predator with a varied diet, known prey of the great hammerhead include invertebrates such as crabs, lobsters, squid, and octopus, bony fishes such as tarpon, sardines, sea catfishes, toadfish, porgies, grunts, jacks, croakers, groupers, flatfishes, boxfishes, and porcupine fishes, and smaller sharks such as smoothhounds.
Halobatrachus didactylus, the Lusitanian toadfish (Gripau (Catalan, Charroco, Encharroco, Xarroco (Portuguese), Pez sapo (Spanish)), is a species of toadfish found along the Atlantic and Mediterranean coasts of western Europe and western Africa.
The splendid toadfish, Sanopus splendidus, also called the coral toadfish and the Cozumel splendid toadfish is a species of toadfish entirely endemic to the island of Cozumel.
Thalassophryne is a genus of toadfishes found in the western Atlantic Ocean with one species (T. amazonica) found in the Amazon River and some of its tributaries.