Ascaphus trui vs toad frog

Ascaphus trui and toad frog both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ascaphus trui	Yes	No	No	No
toad frog	Yes	No	No	No

As nouns, toad frog is a hypernym of Ascaphus trui; that is, toad frog is a word with a broader meaning than Ascaphus trui:

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

Other hypernyms of Ascaphus trui include anuran, batrachian, frog, salientian, toad.

Ascaphus trui (noun)	toad frog (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