no they are quite different. Andinoacara stahlsbergi is different from Andinoacara rivulatus - same genus, different species
http://files.cichlidy.webnode.cz/200000066-a612aa70c5/Strom_Andinoacara_re.jpg
i have 8 rivs
7 with white /silver pattern and 2 with gold pattern
here is my gf playing with a white riv lol
that is my male riv
this is his wife
and here is mum and dad together