So what is the exactly the difference between a capodecine and a caporegime?

I know that the typical structur of the
american Cosa Nostra families today is from top to bottom:
Boss
UnderBoss along with a Consigliere
Then the Capos also refered to as "Skippers"
Each Capo run a crew of several Soldiers.
A Soldeier is sometimes referd to as a Bottom man.
Soldiers are usually allowed to have their own crew of
Outsiders or Connected guys who are not actuall members of the family.