| Clappia | |
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| Drawing of apertural view of the shell and its operculum of Clappia umbilicata | |
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| Genus: | Clappia |
| Diversity [2] | |
| 2 species | |
Clappia is a genus of small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Lithoglyphidae. [2]
Generic name Clappia is in honor of malacologist George Hubbard Clapp. [1]
There are two [2] species within the genus Clappia:
Comparison of apertural views of both species:
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The Cahaba pebblesnail, scientific name Clappia cahabensis, is a species of very small freshwater snail, aquatic gastropod mollusks in the family Lithoglyphidae.
The umbilicate pebblesnail, scientific name Clappia umbilicata, was a species of small freshwater snail that had an operculum, an aquatic gastropod mollusk in the family Lithoglyphidae. This species is now extinct.
The Moapa pebblesnail also known as the Muddy Valley turban snail, scientific name Pyrgulopsis avernalis, is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
Fluminicola is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Lithoglyphidae.
The flat pebblesnail is a species of freshwater snail, an aquatic gastropod mollusk in the family Lithoglyphidae.
Pyrgulopsis is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
The Ash Meadows pebblesnail is a species of freshwater snail with a gill and an operculum, aquatic gastropod mollusk in the family Hydrobiidae.
Somatogyrus is a genus of very small freshwater and brackish water snails that have an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
The thick-lipped pebblesnail, scientific name Somatogyrus crassilabris, was a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae, the mud snails. This species was endemic to the United States. Its natural habitat was rivers. It is now extinct.
The hidden pebblesnail, scientific name Somatogyrus decipiens, is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
The atlas pebblesnail is a species of minute freshwater snail that has an operculum, an aquatic operculate gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States. Its natural habitat is rivers.
The quadrate pebblesnail, scientific name Somatogyrus quadratus, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States. Its natural habitat is rivers. This species is possibly extinct because there is no recent survey information. It is known to have had a very restricted distribution and there had been a habitat disturbance. This species was endemic to the Tennessee River system and was known to exist from Muscle Shoals and adjacent Shoal Creek, Lauderdale County, Alabama. It has not been reported since the river was impounded. Based on the fact that the species has not been observed since the dams were constructed, it is widely believed that that change in habitat possibly caused the species's extinction.
The Savannah pebblesnail, scientific name Somatogyrus tenax, is a species of freshwater snail, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States. Somatogyrus tenax may actually be a junior synonym of Somatogyrus virginicus, although the taxonomy remains in dispute.
The Panhandle pebblesnail, scientific name Somatogyrus virginicus, is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States. Its natural habitat is rivers, where it prefers areas with the fastest current.
Gillia altilis, common name the Buffalo pebblesnail, is a species of freshwater snail, an aquatic gastropod mollusk with an operculum in the family Lithoglyphidae.
Fluminicola nuttallianus, common name dusky pebblesnail, is a possibly extinct species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Lithoglyphidae.
The Cortez Hills pebblesnail is a species of minute freshwater snail with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
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