Category
page 2Hydrobiidae
Beddomeia trochiformis
species of mollusc
Beddomeia minima
species of mollusc

Beddomeia angulata
species of mollusc
Heraultiella exilis
species of Gastropoda
Beddomeia petterdi
species of mollusc
Beddomeia franklandensis
species of mollusc
Marstonia
Marstonia is a genus of freshwater snails with a gill and an operculum, aquatic gastropod molluscs in the family Hydrobiidae.
Littoridinops
Littoridinops is a genus of very small aquatic snails, operculate gastropod mollusks in the family Hydrobiidae.
Belgrandiella
Belgrandiella is a genus of minute freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
Beddomeia tasmanica
species of mollusc
Graecoanatolica macedonica
species of mollusc
Littoridinops monroensis
species of mollusc
Probythinella
Probythinella is a genus of very small aquatic snails, operculate gastropod mollusks in the family Hydrobiidae.
Ecrobia truncata
species of mollusc

Pyrgophorus
Pyrgophorus is a genus of very small freshwater snails with a gill and an operculum, aquatic gastropod molluscs in the family Hydrobiidae.
Littoridinops palustris
species of mollusc

Mercuria
genus of molluscs
Beddomeia tumida
species of mollusc
Sadleriana
Sadleriana is a genus of small freshwater snails, aquatic gastropod mollusks in the family Hydrobiidae.
Pseudamnicola
Pseudamnicola is a genus of small brackish water snails with an operculum, aquatic gastropod mollusks in the subfamily Pseudamnicolinae of the family Hydrobiidae.
Floridiscrobs dysbatus
species of mollusc

Pyrgophorus platyrachis
species of mollusc
Ohridohauffenia drimica
species of mollusc
Littoridinops tenuipes
species of mollusc
Marstonia pachyta
species of mollusc
Fonscochlea
Fonscochlea is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Tateidae. The genus is endemic to mound springs in the Lake Eyre supergroup of South Australia.
Durangonella de Coahuila snail
species of mollusc
Pyrgophorus spinosus
species of mollusc
Marstonia castor
species of mollusc

Harney Basin duskysnail
species of mollusc
Cochliopina
Cochliopina is a genus of very small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Hydrobiidae, the mud snails.
Hauffenia
Hauffenia is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
Marstonia agarhecta
species of mollusc
Taylorconcha
Taylorconcha is a genus of small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Amnicolidae.
Marstonia scalariformis
species of mollusc
Sadleriana fluminensis
species of mollusc

Floridobia
Floridobia is a genus of very small freshwater snails (and one species found in brackish coastal marshes) that have an operculum, in the family Hydrobiidae, the mud snails.
Neohoratia minuta
species of mollusc
Avenionia
Avenionia is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae.
Belgrandia
Belgrandia is a genus of very small aquatic snails, operculate gastropod mollusks in the family Hydrobiidae.
Ecrobia maritima
species of mollusc
Pyrgula
Pyrgula is a genus of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
Pseudamnicola macrostoma
species of mollusc
Belgrandia varica
species of mollusc
Avenionia roberti
species of mollusc
Marstonia olivacea
species of mollusc
Arganiella
Arganiella is a species of very small freshwater snail with an operculum, an aquatic operculate gastropod mollusks in the family Hydrobiidae.
Colligyrus
Colligyrus is a genus of small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Hydrobiidae.

Fissuria
Fissuria is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
Graziana
Graziana is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
Potamopyrgus oscitans
species of mollusc
Pyrgula annulata
species of mollusc
Peringia
Peringia is a genus of very small snails with gills and an operculum, gastropod mollusks in the family Hydrobiidae.
Phrantela
Phrantela is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
Belgrandia silviae
species of mollusc
Alzoniella
Alzoniella is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the subfamily Islamiinae of the family Hydrobiidae.
Alzoniella iberopyrenaica
species of mollusc
Alzoniella marianae
species of mollusc
Pyrgophorus coronatus
species of mollusc
Probythinella protera
species of mollusc