The main difference between Rigatoni and Ziti is that the Rigatoni is a type of pasta and Ziti is a pasta.
Rigatoni [riɡaˈtoːni] are a form of tube-shaped pasta of varying lengths and diameters originating in Italy. They are larger than penne and ziti, and sometimes slightly curved, though nowhere near as curved as elbow macaroni. Rigatoni characteristically have ridges down their length, sometimes spiraling around the tube. And unlike penne, rigatoni’s ends are cut square (perpendicular) to the tube walls instead of diagonally.
The word rigatoni comes from the Italian word rigato (rigatone being the augmentative and rigatoni the plural form), which means “ridged” or “lined”, and is associated with the cuisine of southern and central Italy. Rigatoncini are a smaller version, close to the size of penne. Their name takes on the diminutive suffix -ino (pluralized -ini) denoting their relative size.
Rigatoni is a particular favorite pasta shape in the south of Italy, especially in Sicily. Its namesake ridges make better adhesive surfaces for sauces and grated cheese than smooth-sided pasta like ziti.
Bucatini [bukaˈtiːni], also known as perciatelli [pertʃaˈtɛlli], is a thick spaghetti-like pasta with a hole running through the center. The name comes from Italian: buco, meaning “hole”, while bucato or its Neapolitan variant perciato means “pierced”.
Bucatini is common throughout Lazio, particularly Rome. It is a tubed pasta made of hard durum wheat flour and water. Its length is 25–30 cm (10–12 in) with a 3 mm (1/8 inch) diameter. The average cooking time is nine minutes. In Italian cuisine, it is served with buttery sauces, pancetta or guanciale, vegetables, cheese, eggs, and anchovies or sardines.
Similarly, ziti [ˈdziːti] are long hollow rods which are also smooth in texture and have square-cut edges; “cut ziti” are ziti cut into shorter tubes. There is also zitoni [dziˈtoːni], which is a wider version of ziti.
A ribbed tubular form of pasta, larger than penne but with square-cut ends, often slightly curved.
A type of penne pasta in the form of long smooth hollow tubes.
pasta in the form of short hollow fluted tubes.
pasta in the form of tubes resembling large macaroni.