''Sedercypris'', commonly known as Cedarberg redfins, is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

fish A fish (: fish or fishes) is an aquatic animal, aquatic, Anamniotes, anamniotic, gill-bearing vertebrate animal with swimming fish fin, fins and craniate, a hard skull, but lacking limb (anatomy), limbs with digit (anatomy), digits. Fish can ...

in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Cyprinidae Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and t ...

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to the Clanwilliam Olifants River system in South Africa. The following species are classified in this genus: * '' Sedercypris calidus'' (

Barnard Barnard is a surname of Old English origin, derived from the Anglo-Saxons, Anglo-Saxon given name "Beornheard". It is composed of two elements: "Beorn," meaning "young warrior" or "bear," and "heard," meaning "hardy," "brave," or "strong." In some ...

, 1938) (Clanwilliam redfin) * '' Sedercypris erubescens'' ( Skelton, 1974) (Twee River redfin) Both species are

tetraploid Polyploidy is a condition in which the cells of an organism have more than two paired sets of ( homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two complete sets of chromosomes, one fro ...

, like ''

Pseudobarbus ''Pseudobarbus'' is a ray-finned fish genus in the family Cyprinidae. The type species is Burchell's redfin (''P. burchelli''). The scientific name is derived from the Ancient Greek ''pseudes'' ("false") and the Latin word ''barbus'' ("beard", i ...

'' redfins, from which they were separated in 2018. The distinction from all other southern African tetraploid genera is having six or seven branched rays in the anal fin.

Etymology

''Sedercypris'' is named after the Cedarberg region they inhabit. The Afrikaans spelling was adopted for the name to avoid the possible confusion with the genus ''

Cheilobarbus ''Cheilobarbus'', commonly known as sawfins, is a small genus of freshwater ray-finned fishes belonging to the family Cyprinidae, the family which includes the carps, barbs and related fishes. The fishes in this genus are endemic to the Western ...

'' when abbreviated to an initial in text.

References

{{Taxonbar, from=Q51844883 Freshwater fish of South Africa Fish described in 2018 Smiliogastrinae Cyprinidae genera