A bit more info on this site - I translated "Hamster species" into Turkish and put that into your google link. Even more confusing! It lists the species as Roborovski, Syrian, Russian Dwarf Campbells - and the last one Gonzales (?winter white) - but - it says they are the smallest of all - whereas actually the Roborovski is the smallest species. Still looking for info!
Angels: Hamster Türleri