With multiple scientific names for one species of frogs and new names of known species emerging how can one know which one to use?
You can check species name on the online database of Amphibian Species of the World, by Darrel Frost in the American Museum of Natural History. This database is a reliable source for taxonomic information for amphibians. It is revised on a regular basis and contains the most updated names, including synonyms. Here is the link:
Hope this helps!