''Spintherobolus'' is a genus of

characin Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, more than 2000 different species are described, including the well-known piranha and tetras.; Buckup P.A.: "Relationsh ...

s that are

endemic Endemism is the state of a species being found 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 found els ...

to river basins in

southern Southern may refer to: Businesses * China Southern Airlines, airline based in Guangzhou, China * Southern Airways, defunct US airline * Southern Air, air cargo transportation company based in Norwalk, Connecticut, US * Southern Airways Express, M ...

and

southeastern Brazil The Southeast Region of Brazil ( pt, Região Sudeste do Brasil; ) is composed of the states of Espírito Santo, Minas Gerais, Rio de Janeiro and São Paulo. It is the richest region of the country, responsible for approximately 60% of the Brazilian ...

from Santa Catarina to

Rio de Janeiro Rio de Janeiro ( , , ; literally 'River of January'), or simply Rio, is the capital of the Rio de Janeiro (state), state of the same name, Brazil's List of Brazilian states by population, third-most populous state, and the List of largest citi ...

. All four species in the genus are considered

threatened Threatened species are any species (including animals, plants and fungi) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depensa ...

by Brazil's

Ministry of the Environment An environmental ministry is a national or subnational government agency politically responsible for the environment and/or natural resources. Various other names are commonly used to identify such agencies, such as Ministry of the Environment, ...

ICMBio The Chico Mendes Institute for Biodiversity Conservation ( Portuguese: ''Instituto Chico Mendes de Conservação da Biodiversidade'', ICMBio) is the Brazilian Ministry of the Environment's administrative arm."Brazilian Federal Law 11.516/2007 (Po ...

(Ministry of the Environment, Brazil)
Portaria MMA nº 445, de 17 de dezembro de 2014
Lista de Especies Ameaçadas - Saiba Mais. Retrieved 1 December 2018. They are small fish, up to in

standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish ...

Species

* ''

Spintherobolus ankoseion ''Spintherobolus'' is a genus of characins that are endemism, endemic to river basins in South Region, Brazil, southern and southeastern Brazil from Santa Catarina (state), Santa Catarina to Rio de Janeiro (state), Rio de Janeiro. All four specie ...

'' S. H. Weitzman & L. R. Malabarba, 1999 * '' Spintherobolus broccae'' G. S. Myers, 1925 * '' Spintherobolus leptoura'' S. H. Weitzman & L. R. Malabarba, 1999 * '' Spintherobolus papilliferus'' C. H. Eigenmann, 1911

References

Characidae Fish of South America Fish of Brazil Endemic fish of Brazil {{Characidae-stub