''Characidium'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from

Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Cos ...

. They are small (less than long), slender fish that live on the bottom in flowing fresh waters and feed on small animals such as insects.

Species

There are currently 69 recognized species in this genus: * '' Characidium alipioi'' Travassos, 1955 * ''

Characidium amaila ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Lujan, Agudelo-Zamora, Taphorn,

Booth Booth may refer to: People * Booth (surname) * Booth (given name) Fictional characters * August Wayne Booth, from the television series ''Once Upon A Time'' *Cliff Booth, a supporting character of the 2019 film ''Once Upon a Time in Hollywood'' ...

& López-Fernández, 2013Lujan, N.K., Agudelo-Zamora, H., Taphorn, D.C., Booth, P.N. & López-Fernández, H. (2013)
Description of a New, Narrowly Endemic South American Darter (Characiformes: Crenuchidae) from the Central Guiana Shield Highlands of Guyana.
''Copeia, 2013 (3): 454-463.'' * ''

Characidium bahiense ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' V. G. Almeida, 1971 * ''

Characidium bimaculatum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Fowler, 1941 * ''

Characidium boavistae ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

Steindachner Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner describ ...

, 1915 * ''

Characidium boehlkei ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Géry, 1972 * ''

Characidium bolivianum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' N. E. Pearson, 1924 * ''

Characidium borellii ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' (

Boulenger Boulenger is a surname. Notable people with the surname include: * Benjamin Boulenger (born 1990), French footballer * Edward George Boulenger (1888–1946), British zoologist, director of aquarium at London Zoo * George Albert Boulenger (1858–1 ...

, 1895) * ''

Characidium brevirostre ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Pellegrin, 1909 * ''

Characidium caucanum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' C. H. Eigenmann, 1912 *''

Characidium chancoense ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' * ''

Characidium chupa ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' L. P. Schultz, 1944 * ''

Characidium clistenesi ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' M. R. S. de Melo &

Espíndola Espíndola or Espindola is a surname. Notable people with the surname include: *Cacho Espíndola (1940–2004), Argentine actor *Esteban Espíndola (born 1992), Argentine footballer *Fabián Espíndola (born 1985), Argentine footballer * Facund ...

, 2016Melo, M.R.S. & Espíndola, V.C. (2016): Description of a new species of ''Characidium'' Reinhardt, 1867 (Characiformes: Crenuchidae) from the Chapada Diamantina, Bahia, and redescription of ''Characidium bimaculatum'' Fowler, 1941. ''Zootaxa, 4196 (4): 552-568.'' * '' Characidium crandellii''

, 1915 * '' Characidium declivirostre''

, 1915 * '' Characidium deludens'' Zanata & Camelier, 2015Zanata, A.M. & Camelier, P. (2015)
Two new species of ''Characidium'' Reinhardt (Characiformes: Crenuchidae) from northeastern Brazilian coastal drainages.
''Neotropical Ichthyology, 13 (3): 487-498.'' * ''

Characidium etheostoma ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' Cope, 1872 * ''

Characidium etzeli ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Zarske & Géry, 2001 * ''

Characidium fasciatum ''Characidium fasciatum'', the darter characin, is a fish in the family ''Characidae Characidae, the characids or characins is a family of freshwater subtropical and tropical fish, belonging to the order Characiformes. The name "characins" i ...

'' J. T. Reinhardt, 1867 * ''

Characidium geryi ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' ( Zarske, 1997) * '' Characidium gomesi'' Travassos, 1956 * ''

Characidium grajahuense ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' Travassos, 1944 * ''

Characidium hasemani ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

, 1915 * '' Characidium heinianum'' Zarske & Géry, 2001 * ''

Characidium heirmostigmata ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' da Graça & Pavanelli, 2008 * '' Characidium helmeri'' Zanata, Sarmento-Soares & Martins-Pinheiro, 2015Zanata, A.M., Sarmento-Soares, L.M. & Martins-Pinheiro, R.F. (2015)
A new species of ''Characidium'' Reinhardt (Ostariophysi: Characiformes: Crenuchidae) from coastal rivers in the extreme south of Bahia, Brazil.
''Zootaxa, 4040 (3): 371–383.'' * ''

Characidium interruptum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Pellegrin, 1909 * '' Characidium japuhybense'' Travassos, 1949 * '' Characidium kamakan'' Zanata & Camelier, 2015 * ''

Characidium lagosantense ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Travassos, 1947 * '' Characidium lanei'' Travassos, 1967 * '' Characidium laterale'' (

, 1895) * '' Characidium lauroi'' Travassos, 1949 * '' Characidium litorale'' Leitão & Buckup, 2014Leitão, R.P. & Buckup, P.A. (2014)
A New Species of ''Characidium'' (Characiformes: Crenuchidae) from Coastal Basins of Serra do Mar, Southeastern Brazil.
''Copeia, 2014 (1): 14-22.'' * ''

Characidium longum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' Taphorn,

Montaña Montana or Montaña is the surname of: * Allison Montana (1922–2005), New Orleans cultural icon who acted as the Mardi Gras Indian "chief of chiefs" * Amber Montana (born 1998), American actress * Billy Montana (born 1959), American country mu ...

& Buckup, 2006 * ''

Characidium macrolepidotum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' ( W. K. H. Peters, 1868) * ''

Characidium marshi ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' Breder, 1925 * ''

Characidium mirim ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' Netto-Ferreira, Birindelli & Buckup, 2013Netto-Ferreira, A.L., Birindelli, J.L.O. & Buckup, P.A. (2013)
A new miniature species of ''Characidium'' Reinhardt (Ostariophysi: Characiformes: Crenuchidae) from the headwaters of the rio Araguaia, Brazil.
''Zootaxa, 3664 (3): 361–368.'' * '' Characidium nana''

Mendonça Mendonça () is a Portuguese and Galician surname of Basque origin. It sometimes appears as the anglicized forms ''Mendonca'' or ''Mendonsa''. The Spanish variant is Mendoza. The name has been often linked with royalty. The name may refer to: ...

& Netto-Ferreira, 2015Mendonça, M.B. & Netto-Ferreira, A.L. (2015)
New species of ''Characidium'' (Characiformes: Crenuchidae) from the Rio Tapajós and Rio Xingu drainages, Pará, Brazil.
''Zootaxa, 4021 (1): 187-194.'' * ''

Characidium nupelia ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' da Graça, Pavanelli & Buckup, 2008 * ''

Characidium occidentale ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Buckup & R. E. dos Reis, 1997 * '' Characidium oiticicai'' Travassos, 1967 * ''

Characidium onca ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' M. R. S. de Melo, Mauro César Lambert de Brito Ribeiro & F. C. T. Lima, 2021Marcelo Roberto Souto de Melo, Mauro César Lambert de Brito Ribeiro, Flávio César Thadeo de Lima, A new, narrowly distributed, and critically endangered species of Characidium (Characiformes: Crenuchidae) from the Distrito Federal, Central Brazil, Neotrop. ichthyol. 19 (01) • 2021, https://doi.org/10.1590/1982-0224-2020-0061 * ''

Characidium orientale ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Buckup & R. E. dos Reis, 1997 * '' Characidium papachibe'' L. A. W. Peixoto & Wosiacki, 2013Peixoto, L.A.W. & Wosiacki, W.B. (2013)
A New Species of ''Characidium'' (Characiformes: Crenuchidae) from the Lower Amazon.
''Copeia, 2013 (1): 52-57.'' * '' Characidium pellucidum'' C. H. Eigenmann, 1909 * ''

Characidium phoxocephalum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' C. H. Eigenmann, 1912 * '' Characidium pteroides'' C. H. Eigenmann, 1909 * ''

Characidium pterostictum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' A. L. Gomes, 1947 * ''

Characidium purpuratum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

, 1882 * ''

Characidium rachovii ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

Regan The family name Regan, along with its cognates O'Regan, O Regan, Reagan, and O'Reagan, is an Anglicized form of the Irish surname Ó Riagáin or Ó Ríogáin, from Ua Riagáin. The meaning is likely to have originated in ancient Gaelic ''ri'' ...

, 1913 * ''

Characidium roesseli ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' Géry, 1965 * ''

Characidium samurai ''Characidium'' is a genus of fish in the family (biology), family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bo ...

'' Zanata & Camelier, 2014Zanata, A.M. & Camelier, P. (2014)
A new species of ''Characidium'' (Characiformes: Crenuchidae) from small coastal drainages in northeastern Brazil, with remarks on the pseudotympanum of some species of the genus.
''Neotropical Ichthyology, 12 (2): 333-342.'' * ''

Characidium sanctjohanni ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' Dahl, 1960 * ''

Characidium satoi ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' M. R. S. de Melo & Oyakawa, 2015Melo, M.R.S. & Oyakawa, O.T. (2015)
A New Species of ''Characidium'' Reinhardt (Characiformes, Crenuchidae) with a Distinctively Dimorphic Male.
''Copeia, 103 (2): 281-289.'' * ''

Characidium schindleri ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Zarske & Géry, 2001 * '' Characidium schubarti'' Travassos, 1955 * '' Characidium serrano'' Buckup & R. E. dos Reis, 1997 * '' Characidium steindachneri'' Cope, 1878 * ''

Characidium sterbai ''Characidium sterbai'' is a species of South American darter (family Crenuchidae) endemic to Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Sea ...

'' ( Zarske, 1997) * ''

Characidium stigmosum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' M. R. S. de Melo & Buckup, 2002 * ''

Characidium summum ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing f ...

'' Zanata & Ohara, 2015Zanata, A.M. & Ohara, W.M. (2015)
A new species of ''Characidium'' Reinhardt (Ostariophysi: Characiformes: Crenuchidae) from headwaters of rio Pacaás Novos, rio Madeira basin, Rondônia, Brazil.
''Zootaxa, 4021 (2): 368-376.'' * '' Characidium tenue'' ( Cope, 1894) * '' Characidium timbuiense'' Travassos, 1946 * '' Characidium travassosi'' M. R. S. de Melo, Buckup & Oyakawa, 2016Melo, M.R.S., Buckup, P.A. & Oyakawa, O.T. (2016)
A new species of ''Characidium'' Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil.
''Neotropical Ichthyology, 14 (3): e160014.'' * '' Characidium vestigipinne'' Buckup & L. Hahn, 2000 * ''

Characidium vidali ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' Travassos, 1967 * '' Characidium xanthopterum'' Silveira, Langeani, da Graça, Pavanelli & Buckup, 2008 * ''

Characidium xavante ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' da Graça, Pavanelli & Buckup, 2008 * ''

Characidium zebra ''Characidium'' is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but ''C. marshi'' is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fr ...

'' C. H. Eigenmann, 1909

References

{{Taxonbar, from=Q3762928 Characiformes genera Freshwater fish genera Taxa named by Johannes Theodor Reinhardt Crenuchidae