Answer:
Amateur are bit different than the pro side. In the 1980's the classes were as follows (I am confused about the amateurs, now-a-days): Super Hvy Plus 201 lb/ Hvy 201 lb limit/Light Hvy. 178 lb./ Middlewt. 165 lb./ Light-Middlewt. 156 lb./ Welterwt. 147 lb./ LightWelterwt. 139 lb./ Lightwt. 132 lb./ Featherwt. 125 lb./ Bantamwt. 119 lb./ Flywt. 112 lb./ lightFlyWt. 106 lb.
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College: 112lb/119/125/132/139/147/156/165/172(?)/180/190/ Plus of 190 lb. again, I've seen modern results sheets which show a whole different standard. The 180 and 190 lbs classes are unique to College Boxing.
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Pro: Hvywt. is any weight. Cruiserwt. (this class is controversial/ Very Controversial) 190 lb was the original designate. Some recognized 195 lbs./ to make matters worse, some extend the bar to 200 lbs, which does not sit well with the boxing faithful. -to continue- LightHvywt. bar set at 175 lb. SuperMiddlewt (newest wt class in boxing) bar set at 168 lb. Middlewt. 160/ Jr. Middle/ some areas reference LightMiddle and some yet/ recognize the division as SuperWelterwt. 154 lbs./ Welterwt. is same reading accross the board (amateurs/ same)/ Lightwelter (same complication with a -name) 140 lb. Lightwt. is 135 lb./Jr Light (name complication, again..)=130 lb./ Featherwt. = 126 lb./ Jr Feather (same-complication, problem) 122lb./ Bantamwt = 118 lb./ Jr Bantamwt (same complication with -name) = 115 lb./ Flywt. = 112 lb. And Jr Flywt.= 105 lbs. As of February 1, 2010 that's where it stood.