The Trochidae Family includes 622 species comprising 12 subfamilies (Cantharidinae (25 genus), Umboniinae (22), Trochinae (11), Stomatellinae (6), Fossarininae (6), Monodontinae (3), ...)
and 82 genus (Clanculus (80 species), Gibbula (44), Jujubinus (39), Trochus (32), Stomatella (24), Cantharidus (21), ...)

Phylum      : Mollusca
 Class       : ⤷Gastropoda 
  Subclass    : ⤷Vetigastropoda 
   Order       : ⤷Trochida 
    Superfamily : ⤷Trochoidea 
     Family      : ⤷Trochidae

Common name : top shells

Aspect : conical or turbinated often resembling a toy spinning top; generally large aperture and a flat base with an umbilicus; Size range from 5 mm up to 130 mm; bright colors with darker bands or patterns

Feeding : herbivorous grazers (Microalgae, algal films, spores, cyanobacteria, and vegetable detritus)

Environment : worldwide, from equatorial tropics to high latitudes; greatest diversity in shallow Indo-Pacific waters (e.g., Great Barrier Reef, Southeast Asia) and temperate Atlantic/Pacific shores on rocky shores, coral reefs, and seagrass beds; D*depth Range from intertidal to shallow subtidal (<20 m)