Classic pasta shape is long and rounded, perfect for twirling around a fork. Spaghetti (“A length of cord”) is America’s favorite shape. Vermicelli is s slightly thinner than Spaghetti, and Capellini (Angel hair) is the thinnest. Acni de Pepe is “Peppercorn”-like, bucatini is straw-like. Rotelle (“Little Wheels”) looks like a cartwheel. Rigatoni (“Large Grooved”) has ridges and holes.
Most regular semolina white pasta and whole wheat pasta is vegan. Egg noodles are not, unless it's a "faux egg noodle" variety.