Clappia
Encyclopedia
Clappia is a genus
of small freshwater snail
s that have an operculum
, aquatic
gastropod mollusks in the family Lithoglyphidae
.
Generic name Clappia is in honor of malacologist George Hubbard Clapp
.
Comparison of apertural views of both species:
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of small freshwater snail
Freshwater snail
A freshwater snail is one kind of freshwater mollusc, the other kind being freshwater clams and mussels, i.e. freshwater bivalves. Specifically a freshwater snail is a gastropod that lives in a watery non-marine habitat. The majority of freshwater gastropods have a shell, with very few exceptions....
s that have an operculum
Operculum (gastropod)
The operculum, meaning little lid, is a corneous or calcareous anatomical structure which exists in many groups of sea snails and freshwater snails, and also in a few groups of land snails...
, aquatic
Aquatic animal
An aquatic animal is an animal, either vertebrate or invertebrate, which lives in water for most or all of its life. It may breathe air or extract its oxygen from that dissolved in water through specialised organs called gills, or directly through its skin. Natural environments and the animals that...
gastropod mollusks in the family Lithoglyphidae
Lithoglyphidae
Lithoglyphidae is a family of small freshwater snails with gills and an operculum, aquatic gastropod mollusks.This family is in the superfamily Rissooidea and in the clade Littorinimorpha .- Taxonomy :Taylor , Ponder & Warén and Kabat & Hershler considered this taxon as a subfamily...
.
Generic name Clappia is in honor of malacologist George Hubbard Clapp
George Hubbard Clapp
George Hubbard Clapp was an American pioneer in the aluminum industry and also a numismatist.He was born on December 14 in Allegheny City, Pennsylvania, now a part of Pittsburgh, the son of Delia Dennig Hubbard and DeWitt Clinton Clapp, an iron company executive. He graduated from the Western...
.
Species
There are two species within the genus Clappia:- Clappia cahabensis Clench, 1965 - Cahaba pebblesnailCahaba pebblesnailThe Cahaba pebblesnail, scinetific name Clappia cahabensis, is a species of very small freshwater snail, aquatic gastropod mollusks in the family Lithoglyphidae....
- † Clappia umbilicata (Walker, 1904) - Umbilicate pebblesnailUmbilicate pebblesnailThe umbilicate pebblesnail, scientific name Clappia umbilicata, is an extinct species of a small freshwater snails that had an operculum, aquatic gastropod mollusks in the family Lithoglyphidae.- Distribution :...
, type species as Clapppia clappi
Comparison of apertural views of both species: