proteidea

from The Century Dictionary.

• A division of saurobatrachian or urodelc Amphibia, having the external branchiæ or gill-clefts persistent, or disappearing only in old age, no eyelids, amphicœlous vertebræ, and cartilaginous carpus and tarsus: synonymous with Proteida, and contrasted with the Salamandridea.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) An order of aquatic amphibians having prominent external gills and four legs. It includes Proteus and Menobranchus (Necturus). Called also Proteoidea, and Proteida.