''Microplecostomus forestii'', is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

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% ...

in the

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

Loricariidae The Loricariidae is the largest family of catfish (order Siluriformes), with 92 genera and just over 680 species. Loricariids originate from freshwater habitats of Costa Rica, Panama, and tropical and subtropical South America. These fish are n ...

found in two

tributaries A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage ...

of the Tocantizinho River in the

Tocantins Tocantins () is one of the 26 states of Brazil. It is the newest state, formed in 1988 and encompassing what had formerly been the northern two-fifths of the state of Goiás. Tocantins covers and had an estimated population of 1,496,880 in 2 ...

basin. It is typically found in shallow, clear waters at depths of around 50 cm (19.7 inches), in flat rocky environments. It is known to occur alongside the species Rhinolekos capetinga, as well as members of the genera ''

Ancistrus ''Ancistrus'' is a genus of nocturnal freshwater fish in the family Loricariidae of order Siluriformes, native to freshwater habitats in South America and Panama. Fish of this genus are common in the aquarium trade where they are known as bushy ...

'', '' Creagrutus'', '' Hypostomus'', '' Ituglanis'', and ''

Phenacorhamdia ''Phenacorhamdia'' is a genus of three-barbeled catfishes native to tropical South America. Species There are currently 11 recognized species in this genus: * ''Phenacorhamdia anisura'' ( Mees, 1987) * ''Phenacorhamdia boliviana'' ( N. E. Pears ...

''. This species is the only member of its

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

. It reaches 3.8 cm (1.5 inches) 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 ...

. The fish is named in honor of

Fausto Foresti Fausto is a given name and surname. It is used as a title for: __NOTOC__ Music * ''Fausto'' (opera), an opera by Louise Bertin Films * ''Fausto'' (1993 film), a French film directed by Rémy Duchemin * ''Fausto'' (2018 film), a Canadian film d ...

of the Universidade Estadual Paulista “Júlio de Mesquita Filho”- UNESP, Brazil, because of his contributions to fish genetics, with more than 250 papers published in this field.

References

Loricariidae Monotypic freshwater fish genera Catfish genera Taxa named by Gabriel de Souza da Costa e Silva Taxa named by Fabio F. Roxo Taxa named by Luz Eneida Ochoa Orrego Taxa named by Claudio Oliveira (scientist) {{Loricariidae-stub