Alright, first of all there is no way to visually tell Trempers and Rainwaters apart. Bells in general have redder eyes more spots and are an overall darker leo, However I have seen Trempers that looked remarkably like bells. The interesting thing is if you breed two different types together you get a normal looking leo het for both. Several years ago Ron Tremper recieved a number of wild caught leos (I believe 16) when he breed them together he hatched out albinos. A few years down the road Tim Rainwater had something similar happen to him but when one of his geckos was breed to one of Trempers they were proven to be different morphs. I am unaware of how bells were introduced but I assume it was pretty much the same way. Patternless are born with a pattern that fades as the gecko gets older but they are usually yellow as adults, a blizzard on the other hand is born and stays white (some are gray). A baldy is a super hypomelanistic gecko that does not have any spots on the head.