Im leaning towards gator...but the more i look it could possible be a shortnose. Color/pattern varies alot due to area/collection point and this guys face just looks a bit odd to me like a shortnose.
Smaller/skinny shortnose do not resemble urs but any picture of a large fat one i come across is very close. I have to agree with u o.p. shortnose and gators are very similiar at times.
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