Definition of "marginella"

Common shells include frog-shells, distorsios, volutes, tulips, murex, cones, olives, marginellas, cowries, augers and the Florida horse conch, the state's official shell, which can grow up to 24in (6 1 cm) long.

2002, Don Philpott, Florida: Gulf Coast‎, page 16

Smooth, shiny, brightly colored shells, marginellas are usually found in tropical and warm water.

2006, Jackie Leatherbury Douglass, Shells‎

Marginellas have smooth, shiny shells with an elongate, narrow aperture three-quarters or more of the total shell length.

2008, George Branch, Two Oceans: A Guide to the Marine Life of Southern Africa‎, page 168