| Dianella | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Hydrobiidae |
| Subfamily: | Pyrgulinae |
| Genus: | Dianella Gude, 1913 [1] |
| Type species | |
| * DianaClessin, 1878 (primary homonym) | |
Dianella is a little-known genus of small freshwater snails with a gill and an operculum, aquatic gastropod molluscs in the family Hydrobiidae. [3]
These are European freshwater snails; they occur in southeastern Europe, from northern Italy, through the Balkans, to the Black Sea and the Caspian Sea
Their relatively big shell has an onic[ check spelling ] or turriform shape with a common, prominent, spiral sculpture. The radula shows a rhachidian tooth with no basal cusps. Their stomach has a caecal appendix at its pyloric end. They have a Hydrobia-like central nervous system, a simple penis and a characteristic, big seminal receptacle at the end of a prominent spiral of the coiled oviduct. [2]
Species within the genus Dianella include: [1] [4] [5]
Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater and brackish water snails with an operculum; they are in the order Littorinimorpha.
Viviparidae, sometimes known as the river snails or mystery snails, are a family of large operculate freshwater snails, aquatic gastropod mollusks.
Bithynia is a genus of small freshwater snails with an operculum, aquatic prosobranch gastropod mollusks in the family Bithyniidae.
Cincinnatia is a genus of very small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Hydrobiidae, the mud snails.
Jardinella is a genus of small freshwater snails, aquatic gastropod mollusks in the family Tateidae.
Paludomus is a genus of tropical freshwater snails with an operculum, aquatic gastropod mollusks in thesubfamily Paludominae of the family Paludomidae.
Pyrgulopsis is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
The Littorinidae are a taxonomic family of over 200 species of sea snails, marine gastropod molluscs in the clade Littorinimorpha, commonly known as periwinkles and found worldwide.
Cochliopidae is a family of small freshwater snails with gills and an operculum, aquatic gastropod mollusks.
Mercuria is a genus of small brackish water snails or freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
Marstonia is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
Bellamya is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Viviparidae.
Douglassia is a genus of sea snails, marine gastropod mollusks in the family Drilliidae.
Buccinaria is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Curtitoma is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae.
Ancistrobasis is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Seguenzia is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Tomopleura is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.
Guraleus is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae.
Truncatelloidea is a superfamily of snails, gastropod mollusks in the clade Caenogastropoda.