Lithogenes villosus Eigenmann, 1909
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
Lithogenes villosus is a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armoured catfishes. This species is endemic to Guyana where it is known only frorm two locations on the Potaro River, living in rapids, where it is threatened by illegal mining. This species reaches a maximum Standard length of 4.4 cm (1.7 in). This species was first formally described in 1909 by the German-born American ichthyologist Carl H. Eigenmann with its type locality given as the Upper Potaro River at Aruataima Falls in Guyana. L. villosus is the type species of the genus Lithogenes.
Wikipedia contributors, Lithogenes villosus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T23:04:10.549507+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Lithogenes villosus Eigenmann, 1909
- Name authority
- Eigenmann, 1909
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Loricariidae
- Genus
- Lithogenes
- Extinction status
- Not supplied by this source
Source habitat flags: Marine: no · Freshwater: yes · Terrestrial: no. These do not form a complete habitat description.
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- gigaclassActinopterygii
- superclassActinopteri
- classTeleostei
- orderSiluriformes
- familyLoricariidae Rafinesque, 1815
- subfamilyLithogeninae Gosline, 1947
- genusLithogenes Eigenmann, 1909
- speciesLithogenes villosus Eigenmann, 1909
Close classified relatives
These entries share the source’s genus, Lithogenes. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Lithogenes valencia Provenzano, Schaefer, Baskin & Royero-Leon, 2003 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Lithogenes wahari Schaefer & Provenzano, 2008 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- Eigenmann, C. H. (1909). Reports on the expedition to British Guiana of the Indiana University and the Carnegie Museum, 1908. Report no. 1. Some new genera and species of fishes from British Guiana. Annals of the Carnegie Museum, v. 6 (no. 1): 4–54. https://doi.org/10.5962/p.331035 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:3VKN5. Classification follows source parent identifiers. English common names may vary by region.