axolote

— With respect to situation, the teeth may be present on the jaws only, i. e. the maxillary, premaxillary, and mandibular bones, as in the crocodiles and many lizards: or upon the jaws and roof of the mouth; and here either upon the pterygoid bones, as in the iguana and mosasaur, or upon both palatine and pterygoid bones, as in most serpents, or upon vomer, as in most batrachians, or upon both vomerine and pterygoid bones, as in the axolote, or upon the vomerine and sphenoid bones, as in the salamandra glutinosa, maclure.