The Nassariidae Family includes 671 species comprising 8 subfamilies (Nassariinae (10 genus), Photinae (7), Tomliniinae (4), Anentominae (3), Cylleninae (2), Bulliinae (2), ...)
and 31 genus (Nassarius (350 species), Phos (57), Tritia (40), Nassaria (39), Bullia (39), Reticunassa (35), ...)

Phylum      : Mollusca
 Class       : ⤷Gastropoda 
  Subclass    : ⤷Caenogastropoda 
   Order       : ⤷Neogastropoda 
    Superfamily : ⤷Buccinoidea 
     Family      : ⤷Nassariidae

Common name : Nassa mud snails or dog whelks

Aspect : rounded with a high spire, featuring an oval aperture and a siphonal notch; The aperture may be truncate or include a short, recurved siphonal canal, while the inner lip is often callous and spreads over the body whorl; ranging from 1-2 inches in length, with colors like cream and various patterns

Feeding : scavengers or carnivorous (decaying bodies of invertebrates or fish, oysters)

Environment : distributed worldwide, inhabit mostly shallow waters on sandy or muddy substrates (mangrove areas, coral reefs, rocky shores, gently sloping rocks, pebbles, boulders, and intertidal rocky pools), often in intertidal zones, but can also be found in deeper waters