the species name p velifera is often mistaken for the sphenops molly, also known as the shortfin molly (another bunch of species in itself) when P. velifera is actually the largest species of all mollies, and is actually a type of sailfin. they look a lot like the mollies from florida (P latipinna), but are stockier, longer tail, and have a dorsal fin that looks like a trapazoid, with the small side on the fish. the florida molly (as i like to call P latipinna) has an oval shaped dorsal fin. i'll post pictures when i have more time....ones we see are usually P lattipina or P shenops, also called P mexicana, or P vellifera.
Hmm i think he was asking about different species of livebearers, not just specifically ones we very familiar with, if i'm wrong, my mistake sorry.Yes KillzKayz, the Xiphophorus stockcenter has a list of the Xiphophorus that they have but I can't name them all without a lookup. The question was what fish do you know. I also have seen a list of molly species, can;'t remember exactly where that listed 23 separate species. I could just list web sites but thought the idea was what fish do we know. I only listed fish in my own tanks or fish that I have known from close contact.