Gastropoda: Order Heterobranchia (Snails and Slugs)

Page 6

• Rhodopidae (Sea Snails)
• Ringiculidae (Minute Deep-water Sea Snails)
• Rissoellidae (Minute Sea Snails)
• Tantulidae (Freshwater Slugs)
• Tjaernoeiidae (Sea Snails)
• Valvatidae (Freshwater Snails)
• Volvatellidae (Sea Snails)
• Xylodisculidae (Sea Snails)

Family: Rhodopidae (Sea Snails)

Genus and Selected Species	Image
Helminthope psammobionta
Rhodope veranii

Family: Ringiculidae (Minute Deep-water Sea Snails)

Genus and Selected Species	Image
Microglyphis japonicus
Pseudoringicula sinensis
Ringicula doliaris
Ringiculoides kurilensis
Ringiculopsis foveolata

Family: Rissoellidae (Minute Sea Snails)

Genus and Selected Species	Image
Cincinna kiiensis
Cythnia albida
Jeffreysina inflata
Rissoella opalina

Family: Tantulidae (Freshwater Slugs)

Genus and Selected Species	Image
Tantulum elegans

Family: Tjaernoeiidae (Sea Snails)

Genus and Selected Species	Image
Tjaernoeia boucheti

Family: Valvatidae (Freshwater Snails)

Genus and Selected Species	Image
Borysthenia naticina
Megalovalvata baicalensis
Valvata cristata

Family: Volvatellidae (Sea Snails)

Genus and Selected Species	Image
Ascobulla frragilis
Volvatella vigourouxi

Family: Xylodisculidae (Sea Snails)

Genus and Selected Species	Image
Xylodiscula lens

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