The Collaborative International Dictionary of English v.0.48:

Batrachia \Ba*tra"chi*a\, n. pl. [NL., fr. Gr. batra`cheios
   belonging to a frog, fr. ba`trachos frog.] (Zool.)
   The order of amphibians which includes the frogs and toads;
   the Anura. Sometimes the word is used in a wider sense as
   equivalent to Amphibia.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Batrachia
    n 1: frogs, toads, tree toads [syn: Salientia, order
         Salientia, Anura, order Anura, Batrachia, order
         Batrachia]