Burnupia is a genus 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 or limpet

Limpet

Limpet is a common name for a number of different kinds of saltwater and freshwater snails ; it is applied to those snails that have a simple shell which is more or less conical in shape, and either is not spirally coiled, or appears not to be coiled in the adult snails.The name limpet is most...

s, 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 that are traditionally placed in the family Planorbidae

Planorbidae

Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks....

.

However, according to the molecular markers (COI

COI

COI may refer to:Places* City of Industry, CaliforniaPolitics and society* Center of Information, agency that followed the Office of Strategic Services and preceded the Central Intelligence Agency...

, 18S rRNA), the genus Burnupia differs from ancylids and from Planorboidea

Planorboidea

Planorboidea is a superfamily of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks.The gastropods in this superfamily are all sinistral in shell coiling.The monophyly of Planorboidea has been confirmed by Albrecht et al. ....

.

Species

The number of species in the genus Burnupia is highly uncertain and there are 21 specific names recognized. Also in 2011 IUCN Red List

IUCN Red List

The IUCN Red List of Threatened Species , founded in 1963, is the world's most comprehensive inventory of the global conservation status of biological species. The International Union for Conservation of Nature is the world's main authority on the conservation status of species...

 there are recognized 21 species: 19 of them are Data Deficient

Data Deficient

Data Deficient is a category applied by the IUCN, other agencies, and individuals to a species when the available information is not sufficient for a proper assessment of conservation status to be made...

, and Burnupia crassistriata

Burnupia crassistriata

Burnupia crassistriata is a species of small freshwater snail or limpet, an aquatic gastropod mollusk which was traditionally placed in the family Planorbidae, the ram's horn snails and their allies....

and Burnupia stuhlmanni

Burnupia stuhlmanni

Burnupia stuhlmanni is a species of small freshwater snail or limpet, an aquatic gastropod mollusk which was traditionally placed in the family Planorbidae, the ram's horn snails and their allies.- Distribution :...

with Near Threatened

Near Threatened

Near Threatened is a conservation status assigned to species or lower taxa that may be considered threatened with extinction in the near future, although it does not currently qualify for the threatened status...

 status. There are probably "only few" species of Burnupia.

Species in the genus Burnupia include:

• Burnupia alta Pilsbry & Bequaert, 1927
• Burnupia brunnea Walker, 1924
• Burnupia caffra (Krauss, 1848) - type species
• Burnupia capensis (Walker, 1912)
• Burnupia crassistriata
  Burnupia crassistriata
  Burnupia crassistriata is a species of small freshwater snail or limpet, an aquatic gastropod mollusk which was traditionally placed in the family Planorbidae, the ram's horn snails and their allies....
  
  (Preston, 1911)
• Burnupia edwardiana Pilsbry & Bequaert, 1927
• Burnupia farquhari (Walker, 1912)
• Burnupia gordonensis (Melvill & Ponsonby, 1903)
• Burnupia kempi (Preston, 1912)
• Burnupia kimiloloensis Pilsbry & Bequaert, 1927
• Burnupia mooiensis (Walker, 1912)
• Burnupia nana (Walker, 1912)
• Burnupia obtusata Walker, 1926
• Burnupia ponsonbyi Walker, 1924
• Burnupia stenochorias
  Burnupia stenochorias
  Burnupia stenochorias is a species of small freshwater snail or limpet, an aquatic gastropod mollusk in the family Planorbidae.- Distribution :This freshwater limpet is found in South Africa.- Ecology :...
  
  (Melvill & Ponsby, 1903)
• Burnupia stuhlmanni
  Burnupia stuhlmanni
  Burnupia stuhlmanni is a species of small freshwater snail or limpet, an aquatic gastropod mollusk which was traditionally placed in the family Planorbidae, the ram's horn snails and their allies.- Distribution :...
  
  (von Martens, 1897)
• Burnupia transvaalensis (Craven, 1880)
• Burnupia trapezoidea (Boettger, 1910)
• Burnupia verreauxi (Bourguignat, 1853)
• Burnupia vulcanus Walker, 1924
• Burnupia walkeri Pilsbry & Bequaert, 1927