Crosier
The bishops use a staff called a crosier which is an ornamental staff shaped like a shepherd's crook. It may be held or carried by bishops, mitered abbots, and other prelates. It symbolizes their role as caretaker of their flock.
The bishops are the successors of the 12 Apostles.
It is called a crozier and is carried by all bishops.
The papal staff is called a ferula. It is a staff which is topped by a cross. Bishops carry a staff with a curved top which is called a crozier.
It is called the crozier.
Bench
Bishops that elect the pope are called cardinals.
Crosier is the name of the bishop or pope's staff.
The tall hat used by bishops of the Latin rite during the celebration of the Mass and certain other ceremonies is called a "miter." There are other types of headcoverings as well, like the galero, saturno, and zucchetto.
Nuns, priests,bishops
The pope does not have a scepter. He carries a crozier, the bishop's staff, which is a symbol of his office as bishop of Rome. All bishops have a crozier. It resembles the shepherd's crook.
Popes, cardinals, archbishops and bishops