''Andeancistrus'' 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 ...

of suckermouth armored catfishes native to

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

. This genus is diagnosable from all other members of the ''

Chaetostoma ''Chaetostoma'', also known as the bristlemouth catfish, is a genus of suckermouth armored catfishes native to South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a ...

'' group by having a fully plated

snout A snout is the protruding portion of an animal's face, consisting of its nose, mouth, and jaw. In many animals, the structure is called a muzzle, Rostrum (anatomy), rostrum, beak or proboscis. The wet furless surface around the nostrils of the n ...

, lacking cheek

odontode Odontodes, or dermal teeth, are hard structures found on the external surfaces of animals or near internal openings. They consist of a soft pulp surrounded by dentine and covered by a mineralized substance such as enamel, a structure similar to t ...

s that extend past the opercular flap, and by having eight branched

dorsal fin A dorsal fin is a fin on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine environments, so the fins are not all homologous. They are found ...

rays Ray or RAY may refer to: Fish * Ray (fish), any cartilaginous fish of the superorder Batoidea * Ray (fish fin anatomy), the bony or horny spine on ray-finned fish Science and mathematics * Half-line (geometry) or ray, half of a line split at an ...

.Lujan, N.K., Meza-Vargas, V. & Barriga-Salazar, R. (2015): Two New ''Chaetostoma'' Group (Loricariidae: Hypostominae) Sister Genera from Opposite Sides of the Andes Mountains in Ecuador, with the Description of One New Species. ''Copeia, 103 (3): 651-663.''

Species

There are currently 2 recognized species in this genus: * ''

Andeancistrus eschwartzae ''Andeancistrus eschwartzae'' is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it occurs in the Amundalo River, which is part of the Pastaza River drainage basin in Ecuador Ecuador ...

'' Lujan, Meza-Vargas & Barriga-S., 2015 * ''

Andeancistrus platycephalus ''Andeancistrus platycephalus'' is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Zamora River basin, which is part of the upper Marañón River drainage in Ecuador. The species can reach i ...

'' (

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– ...

, 1898)

References

Ancistrini Catfish of South America Taxa named by Nathan Keller Lujan Taxa named by Vanessa Meza-Vargas Taxa named by Ramiro Edmundo Barriga-Salazar {{Hypostominae-stub