it would be a Venusian salmon. same way we have birds and animals with the same name across continents. An Indian porcupine is not related to an American porcupine, but “Indian porcupine” is still monophyletic, and just saying “porcupine” is more informal, though technically paraphyletic.

We actually do informal cladistics. " fox " isn’t a species but a genus “common fox” is Vulpez vulpez which is a species, while fox refers to all the genus.