plural noun
Pe·ren·ni·bran·chi·a·ta | \-ˈātə\

Definition of Perennibranchiata 

in former classifications

: a division of Caudata comprising amphibians (as salamanders of the genus Necturus) that retain their gills through life — compare caducibranchiata

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History and Etymology for Perennibranchiata

New Latin, from Latin perennis perennial + New Latin branchi- + -ata

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