When Neogastropoda was an order, it was within the prosobranch gastropods according to the taxonomy developed by Thiele (1921). The families which used to form the order Neogastropoda are now included in the infraorder Neogastropoda Cox, 1960.
The shell has a well-developed siphonal canal. The elongated trunk-like siphon is an extensible tube, formed from a fold in the mantle. It is used to suck water into the mantle cavity. At the base of the siphon is the bipectinate (branching from a central axis) osphradium, a sensory receptacle and olfactory organ, that is more developed than the one in the Mesogastropoda.
The nervous system is very concentrated. Many species have the ganglia in a compact space.
The rachiglossate (rasp-like) radula, a layer of serially arranged teeth within the mouth, have only three denticles (small teeth) in each transverse row.
The Neogastropoda have separate sexes.
There are about 16,000 species. Neogastropoda includes many well-known gastropods including the cone snails, conchs, mud snails, olive snails, oyster drills, tulip shells, and whelks. The Neogastropoda all live in the sea, except Clea, a rare freshwater genus. They are mostly predators, some are saprophagous (scavengers).
Metamorphic Remodeling of a Planktotrophic Larva to Produce the Predatory Feeding System of a Cone Snail (Mollusca, Neogastropoda)
Oct 01, 2011; Introduction Predatory gastropods have complex feeding systems that are highly derived relative to those of the herbivorous...
KYLLINIA PARENTALIS (NEOGASTROPODA: TURRIDAE), NEW GENUS AND SPECIES FROM THE PLIO-PLEISTOCENE OF THE CENTRAL MEDITERRANEAN AREA
Jul 01, 2007; ABSTRACT- A new genus and species of turrid neogastropod, Kyllinia parentalis, is described based on three shells from the...
NORTHEAST PACIFIC CRETACEOUS RECORD OF PYROPSIS (NEOGASTROPODA: PYROPSIDAE) AND PALEOBIOGEOGRAPHY OF THE GENUS
Dec 25, 2011; ABSTRACT- The neogastropod genus Pyropsis Conrad, 1860 (family Pyropsidae Stephenson, 1941) is recognized for the first time from...