The long clefted hat worn by bishops is called a "mitre." This ceremonial headwear is characterized by its two peaks and is often adorned with religious symbols. The mitre signifies the bishop's authority and role within the church.
The 'cap' (beanie) worn by some priests, and all bishops, cardinals and the pope is called a zucchetto.
It is a long white robe that goes down to the ankles, it is worn by priests, deacons, bishops etc. and not very oftenly worn by altar servers as well.
Cassock
Chimere
Mitre
stole
The outermost garment worn by a priest while saying Mass is called a chasuble.
A mitre is a headdress worn by bishops on formal occasions. The word is pronounced MY-ter, to rhyme with fighter.
A mozzeta is a elbow-length cape that is worn by other clergy(priest,bishops,deacons etc)but the pope has a hood.
It is called a Zuchetto and it comes in various colours: White : The Pope and members of the Dominican and Norbetine religious orders Red: Cardinals Violet: (Called Amaranth Red by the RCC) Patriarchs, Archbishops and Bishops Black: Priests and Deacons.
A zucchetto is a small, skullcap worn by clergy in the Roman Catholic Church, particularly by bishops, cardinals, and the pope. The color of the zucchetto varies by rank: bishops wear purple, cardinals wear red, and the pope wears white. It is typically worn during liturgical functions and signifies the wearer's clerical status.
Most people call it a "chef's hat", but its proper name is a toque.