Neogastropoda

Map cone ( Conus geographus )

The Neuschnecken ( Neogastropoda ) are a species-rich, almost exclusively marine living part of the order Hypsogastropoda within the order Sorbeoconcha the snails ( Gastropoda ). They can be detected fossil for about 100 million years ago. The total number of Neuschneckenarten is estimated at about 16,000.

Features

The spirally- wound subdued housing is usually right and extremely diverse. The lower edge is often extended to a tubular Siphonalkanal. The ratios in the mantle cavity are compared with the Patellogastropoda greatly simplified. The genital organs are separated from the excretory organs. There is usually only one half side feathery gill present, which is adherent to the original central axis of the sheath. In many cases, a retractable snout is present. The radula usually has a radula with only three teeth per transverse row, a middle tooth and two lateral teeth ( except Conoidea, here are just a poison tooth). In many cases, a venom gland is present, with the prey is paralyzed. The animals are usually dioecious.

Life, the occurrence and distribution

Neuschnecken live predominantly predatory or Scavenging. They occur to the deep sea in almost all oceans from shallow waters. You almost live on all substrates of sandy- muddy to hard substrates. The Neuschnecken include the whelks ( Muricidae ), the horn worm ( Buccinidae ) with the whelk and cone snails ( Conidae ).

System

The Neuschnecken are referred to in the older literature as Stenoglossa ( Schmalzüngler ); This name is now regarded as a synonym of Neogastropoda. The branch ( " clade ") of Neuschnecken within the snail, whose linneisch - hierarchical rank of Bouchet and Rocroi is left open is divided them into six superfamilies.

• Rafinesque - Schmaltz Buccinoidea, 1815
• Rafinesque - Schmaltz Muricoidea, 1815
• Olivoidea Latreille, 1825
• Pseudolivoidea de Gregorio, 1882
• Conoidea Fleming, 1822
• Cancellarioidea Forbes & Hanley, 1851