tailed frog vs batrachian

tailed frog and batrachian both are nouns.

Word	Noun	Adjective	Verb	Adverb
tailed frog	Yes	No	No	No
batrachian	Yes	Yes	No	No

As nouns, batrachian is a hypernym of tailed frog; that is, batrachian is a word with a broader meaning than tailed frog:

tailed frog: western North American frog with a taillike copulatory organ
batrachian: any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

Other hypernyms of tailed frog include anuran, frog, salientian, toad, toad frog.

tailed frog (noun)	batrachian (noun)
western North American frog with a taillike copulatory organ	any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

tailed frog (adjective)	batrachian (adjective)
	relating to frogs and toads