Freshwater Molluscan Shells

Classification for the gastropods, from listings in http://en.wikipedia.org/wiki/Gastropoda and Ponder and Lindberg, 1997, modified to take into account the work of Bouchet and Rocroi, 2005 and Strong and Kohler, 2009. The suffix for the superfamilies used here, -oidea, may be more technically correct than the "-acea" suffix used elsewhere on this site. -Acea is used in botany for plant families, and elsewhere in zoology occasionally, for example the mammalian order "cetacea".

KEY
Primary habitat   Various, or unspecified
Land
Freshwater
Marine
Deep sea, or vent
Class Subclass Superorder Order Suborder Infraorder Superfamily
        Patellina   Patelloidea 
  Eogastropoda   Patellogastropoda
(true limpets)
Nacellina   Acmaeoidea 
Nacelloidea 
        Lepetopsina   Lepetopsoidea 
             
    Cocculiniformia       Cocculinoidea 
Lepetelloidea 
             
    ‘Hot Vent Taxa' Neomphaloida     Neomphaloidea 
Peltospiroidea 
             
    Vetigastropoda       Fissurelloidea 
Haliotoidea 

Lepetodriloidea 
Pleurotomarioidea 
Seguenzioidea 
Trochoidea 
             
    Neritaemorphi Neritopsina     Neritoidea 
(several freshwater 
genera)
 
Helicinoidea 
             
      Architaenioglossa     families Ampullariidae 
  Viviparidae 
Cyclophoridea 
             
        Discopoda   Campaniloidea  
Cerithioidea 
(includes freshwater  families 
Thiaridae, 
Pleuroceridae,  
Paludomidae

Semisulcospiridae,
 
Pachychilidae,
 

Potadomidae
 
Melanopsidae)  
             
        Murchisoniina   Loxonematoidea 
             
G
A
S
T
R
O
P
O
D
A
  Caenogastropoda







Sorbeoconcha






Hypsogastropoda
Littorinimorpha Calyptraeoidea 
Capuloidea
 
Carinarioidea
 
Cingulopsoidea
 
Cypraeoidea
 
Ficoidea
 
Laubierinoidea
 
Littorinoidea
 
Naticoidea
Rissooidea (Includes
Hydrobiidae, etc.
)
Stromboidea
 
Tonnoidea
Trivioidea
 
Vanikoroidea
 
Velutinoidea
 
Vermetoidea
 
Xenophoroidea
 
             
          Ptenoglossa Eulimoidea 
Janthinoidea
 
Triphoroidea
 
             
          Neogastropoda Buccinoidea 
Cancellarioidea
 
Conoidea
 
Muricoidea
 
             
      Heterostropha     Architectonicoidea 
Omalogyroidea
 
Pyramidelloidea
 
Rissoelloidea
 
Valvatoidea 
             
  Orthogastropoda     Cephalaspidea   Acteonoidea 
Bulloidea
 
Cylindrobulloidea
 
Diaphanoidea
 
Haminoeoidea
 
Philinoidea
 
Ringiculoidea
 
             
        Sacoglossa   Oxynooidea 
             
        Anaspidea
(sea hares)
  Aplysioidea 
Akeroidea
 
             
        Notaspidea   Tylodinoidea 
Pleurobranchoidea
 
             
      Opisthobranchia Thecosomata Euthecosomata Limacinoidea 
Cavolinioidea
 
        (sea butterflies) Pseudothecosomata Peraclidoidea 
Cymbulioidea
 
             
        Gymnosomata
(sea angels)
  [Families] 
Clionidae
 
Cliopsidae
 
Hydromylidae
 
Laginiopsidae
 
Notobranchaeidae
 
Pneumodermatidae
 
Thliptodontidae
 
             
          Anthobranchia Doridoidea 
Doridoxoidea
 
Onchidoridoidea
 
Polyceroidea
 
        Nudibranchia    
    Heterobranchia     Cladobranchia Dendronotoidea 
Arminoidea
 
Metarminoidea
 
Aeolidioidea
 
             
        Systellommatophora   Onchidioidea 
Otinoidea 
Rathouisioidea 
             
        Basommatophora
(freshwater pulmonates, pond snails)
  Acroloxoidea 
Amphiboloidea 
Chilinoidea
 
Chilinidae + Latiidae 
Glacidorboidea 
Lymnaeoidea 
Planorboidea
 
(Planorbidae + Physidae) 
Siphonarioidea 
             
          Acteophila
(= formerly Archaeopulmonata)
Melampoidea 
             
          Trimusculiformes Trimusculoidea 
             
      Pulmonata     Subinfraorder Orthurethra
Achatinelloidea 
Cochlicopoidea
 
Partuloidea
 
Pupilloidea
 
             
        Eupulmonata









Stylommatophora
(land snails)




Subinfraorder Sigmurethra
Acavoidea 
Achatinoidea
 
Aillyoidea
 
Arionoidea
 
Buliminoidea
 
Camaenoidea
 
Clausilioidea
 
Dyakioidea
 
Gastrodontoidea
 
Helicoidea
 
Helixarionoidea
 
Limacoidea
 
Oleacinoidea
 
Orthalicoidea
 
Plectopylidoidea
 
Polygyroidea
 
Punctoidea
 
Rhytidoidea
 
Sagdidoidera
 
Staffordioidea
 
Streptaxoidea
 
Strophocheiloidea
 
Succineoidea
 
Athoracophoroidea
 
Zonitoidea
 
Trigonochlamydoidea
 
Class Subclass Superorder Order Suborder Infraorder Superfamily


Ponder, W. F. and Lindberg, D. R. 1997. Towards a phylogeny of gastropod molluscs: an analysis using morphological characters. Zoological Journal of the Linnean Society. 119: 83-265.

 

Freshwater subset

Class Subclass Superorder Order Suborder Infraorder Superfamily
    Neritaemorphi Neritopsina     Neritoidea 
(several freshwater 
genera)
 
             
      Architaenioglossa     Ampullarioidea 
(Ampullariidae +  Viviparidae) 
             
G
A
 

Caenogastropoda
  Discopoda   Cerithioidea 
(includes freshwater  families 
Thiaridae, 
Pleuroceridae,  
Paludomidae

Semisulcospiridae,
 
Pachychilidae,
 

Potadomidae
 
Melanopsidae)  
S     Sorbeoconcha      
T
R
O
P
Orthogastropoda
  Hypsogastropoda Littorinimorpha
Rissooidea (Includes
Hydrobiidae, etc.
)
O            
D
A
    Heterostropha     Valvatoidea 
    Heterobranchia        
      Pulmonata Basommatophora
(freshwater pulmonates,
pond snails)
  Acroloxoidea 
Chilinoidea
 
(Chilinidae + Latiidae) 
Glacidorboidea 
Lymnaeoidea 
Planorboidea
 
(Planorbidae + Physidae) 
Class Subclass Superorder Order Suborder Infraorder Superfamily

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