Carb setup and all diaphragms??

Location
Austin
Went to rebuild my carbs and saw that on one carb I have a pump cover, a clear diaphragm, O'Ring, diaphragm body assembly, diaphragm, o'ring, then main throttle body.

Now on the first carb it was pump cover, oring, then main throttle body.

My question is there supposed to be a black or clear diaphragm here?
 
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