The Neritidae Family includes 282 species comprising 2 subfamilies (Neritininae (13 genus), Neritinae (3))
and 16 genus (Nerita (76 species), Clithon (51), Theodoxus (33), ...)

Phylum      : Mollusca
 Class       : Gastropoda 
  Subclass    : Neritimorpha 
   Order       : Cycloneritida 
    Superfamily : Neritoidea 
     Family      : Neritidae

Common name : nerites

Aspect : globular shell, great last turn, low or flattened turn. Smooth surface or spiral sculpture. Semicircular opening narrowed by the broad collumellar region, flattened more or less toothed. Thickened lip often indented. Limestone seal with hooks

Feeding : herbivorous

Environment : shallow waters, rocky shores, brackish water

Nerita albicilla Linnaeus, 1758 (Subfamily Neritinae)