| Romania Temporal range: Miocene | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Truncatelloidea |
| Family: | Hydrobiidae |
| Genus: | † Romania Cossmann, 1913 |
| Type species | |
| † Juliania expansa Roman, 1912 | |
Romania is an extinct genus of freshwater snails, aquatic gastropod molluscs in the family Hydrobiidae. [2]
Species within the genus Romania include:
Ampullariidae, whose members are commonly known as apple snails, is a family of large freshwater snails that includes the mystery snail species. They are aquatic gastropod mollusks with a gill and an operculum. These snails simultaneously have a gill and a lung as functional respiratory structures, which are separated by a division of the mantle cavity. This adaptation allows these animals to be amphibious. Species in this family are considered gonochoristic, meaning that each individual organism is either male or female.
Muricidae is a large and varied taxonomic family of small to large predatory sea snails, marine gastropod mollusks, commonly known as murex snails or rock snails. With over 1,700 living species, the Muricidae represent almost 10% of the Neogastropoda. Additionally, 1,200 fossil species have been recognized. Numerous subfamilies are recognized, although experts disagree about the subfamily divisions and the definitions of the genera. Many muricids have unusual shells which are considered attractive by shell collectors and by interior designers.
Hydrocenidae is a taxonomic family of minute land snails or cave snails with an operculum, terrestrial gastropod mollusks or micromollusks in the clade Cycloneritimorpha.
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.
Cochlicopa, whose species are known as pillar snails, is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Cochlicopidae.
Pseudamnicola is a genus of small brackish water snails with an operculum, aquatic gastropod mollusks in the subfamily Pseudamnicolinae of the family Hydrobiidae.
The Columbellidae, the dove snails or dove shells, are a family of minute to small sea snails, marine gastropod mollusks in the order Neogastropoda.
Fasciolariidae is a family of small to large sea snails, marine gastropod mollusks in the superfamily Buccinoidea. Species in Fasciolariidae are commonly known as tulip snails and spindle snails.
The Cerithioidea is a superfamily of marine, brackish water and freshwater gastropod containing more than 200 genera. The Cerithoidea are included unassigned in the subclass Caenogastropoda. The original name of this superfamily was Cerithiacea, in keeping with common superfamily endings at the time.
Sveltella is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
Rimosodaphnella is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Dillwynella is a genus of sea snails, marine gastropod mollusks in the family Skeneidae.
Plesiothyreus is a genus of very small sea snails or limpets, marine gastropod mollusks in the subfamily Phenacolepadinae of the family Phenacolepadidae.
Procerithiidae is a taxonomic family of sea snails, marine gastropod molluscs in the clade Sorbeoconcha.
Lacuna is a genus of sea snails, marine gastropod mollusks in the family Littorinidae, the winkles or periwinkles.
Obtusella is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Rissoidae.
Hemiconus is an extinct genus of sea snails, marine gastropod mollusks, in the family Conidae the cone snails and their allies.
Metaconulus is an extinct genus of sea snails, marine gastropod mollusks, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
Crassitoniella is a genus of taxonomic family of minute sea snails, marine gastropod molluscs in the family Eatoniellidae. All currently identified species in the family are endemic to the waters of Australia and New Zealand. The type specimen of the genus is Crassitoniella carinata.
Trophonopsis bonneti is an extinct species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
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