protonopsidæ

from The Century Dictionary.

• A family of gradient or tailed amphibians, typified by the genus Protonopsis, without eyelids, with teeth on the anterior margin of the palatine bones, no dentigerous plates on the parasphenoid, vertebræ amphicœlian, no anterior axial cranial bone, the parietals and prefrontals prolonged, meeting and embracing the frontals, the wall of the vestibule membranous internally, premaxillaries separated, the occipital condyles sessile, and well-developed limbs. Also called Menopomidæ.