''Loricariichthys brunneus'', commonly called

Alcalde Alcalde (; ) is the traditional Spanish municipal magistrate, who had both judicial and administrative functions. An ''alcalde'' was, in the absence of a corregidor, the presiding officer of the Castilian '' cabildo'' (the municipal council) a ...

, Paleta or Tabla is a

species In biology, a species is the basic unit of 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 the appropriate s ...

catfish Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, ...

in the family Loricariidae. It is native to

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...

, where it occurs in the

Orinoco The Orinoco () is one of the longest rivers in South America at . Its drainage basin, sometimes known as the Orinoquia, covers , with 76.3 percent of it in Venezuela and the remainder in Colombia. It is the fourth largest river in the wor ...

basin in Guyana and Venezuela. The species is believed to be a facultative air-breather. A species of parasitic

nematode The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-Parasitism, parasitic nematodes also known as eelworms. They are a diverse animal phylum inhab ...

in the family Guyanemidae, ''Guyanema longispiculum'', was described in 1996 from the abdominal cavity of ''L. brunneus'' specimens.Moravec, F., Prouza, A., & Royero, R. (1996). Guyanema longispiculum sp. n. (Nematoda:Dracunculoidea) from Loricariichthys brunneus (Pisces) in Venezuela. ''Folia parasitologica'', ''43''(3), 227–231.

References

Loricariidae Fish described in 1828 Catfish of South America Fish of Guyana Fish of Venezuela {{Loricariidae-stub