Any new species is given a new scientific name. In the case of a frog and a mouse, the two cannot breed as they aren't closely related. Mice are mammals while frogs are amphibians.
The scientific or taxonomic name would be Peromyscus crinitus.
The scientific or taxonomic name would be Peromyscus maniculatus.
The scientific or taxonomic name would be Microtus pennsylvanicus.
The scientific or taxonomic name would be Peromyscus truei.
The scientific or taxonomic name would be Zapus princeps.
The scientific or taxonomic name would be Peromyscus leucopus.
The scientific or taxonomic name would be Acomys cilicicus.
The scientific or taxonomic name would be Apodemus peninsulae.
The scientific or taxonomic name would be Calomyscus mystax.
The scientific or taxonomic name would be Chaetodipus hispidus.
The scientific or taxonomic name would be Acomys cahirinus.
The scientific or taxonomic name would be Acomys russatus.