Family: Mitridae and Costellariidae. Miters comprise a diverse group of two large families, with more than 500 species. Most live in warm shallow seas and use their long retractable snout to feed on clams and marine worms. Usually elongated in form, they feature vibrant color patterns. Miters stay hidden under rocks or coral during the day and burrow in sand during the night while feeding. Interesting Facts: Miters are so named because of their resemblance to the peaked caps, sometimes worn by popes, bishops, and other ecclesiastics.