Knodus borki Zarske, 2008
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
Knodus borki is a species of characin endemic to Peru, where it is found in the vicinity of Iquitos. It is found in a freshwater environment within a benthopelagic depth range. This species is native to a tropical environment. It lives in the habitats of rivers, streams, and tributaries.
K. borki reaches about 2 in (5.1 cm) in length. It is one of several species known by the common name "blue tetra".
It is named in honor of German aquarist Dieter Bork, who "contributed much to the development of aquariology as a dedicated aquarium friend (breeder, author and photographer)"; he also supplied the type specimen.
Wikipedia contributors, Knodus borki; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:56:21.400869+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Knodus borki Zarske, 2008
- Name authority
- Zarske, 2008
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Characiformes
- Family
- Stevardiidae
- Genus
- Knodus
- 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
- orderCharaciformes
- suborderCharacoidei
- familyStevardiidae Gill, 1858
- subfamilyDiapominae Eigenmann, 1909
- genusKnodus Eigenmann, 1911
- speciesKnodus borki Zarske, 2008
Close classified relatives
These entries share the source’s genus, Knodus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Knodus gamma Géry, 1972 | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus smithi (Fowler, 1913) | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus savannensis Géry, 1961 | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus geryi Lima, Britski & Machado, 2004 | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus delta Géry, 1972 | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus figueiredoi Esguícero & Castro, 2014 | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus tiquiensis Ferreira & Lima, 2006 | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus mizquae (Fowler, 1943) | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus septentrionalis Géry, 1972 | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus shinahota Ferreira & Carvajal, 2007 | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus angustus Menezes, Ferreira & Netto-Ferreira, 2020 | StevardiidaeChordata | Accepted speciesExtinction status not supplied |
| Knodus cupariensis de Sousa, Silva-Oliveira, Canto & Ribeiro, 2020 | StevardiidaeChordata | 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.
- Zarske, A. (2008). Knodus borki sp. N.- ein neuer Salmler aus Peru met einer ergänzenden Beschreibung von Boehlkea fredcohui Géry, 1966 (Teleostei: Characiformes; Characidae). Vertebrate Zoology, 58. https://doi.org/10.3897/vz.58.e30929 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:6NLSM. Classification follows source parent identifiers. English common names may vary by region.