Corydoras simulatus Weitzman & Nijssen, 1970
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
Corydoras simulatus, the Olga cory, is a species of freshwater ray-finned fish belonging to the subfamily Corydoradinae, the corys, of the family Callichthyidae, the armoured catfishes. This species is found in the Upper Meta River basin in Colombia.
The fish prefers clean, clear water with a current. It will grow in length up to 1.9 inches (4.8 centimeters). It lives in a tropical climate in water with a 6.0 – 8.0 pH, a water hardness of 2 – 25 dGH, and a temperature range of 68–77 °F (20–25 °C). It feeds on worms, benthic crustaceans, insects, and plant matter. It lays eggs in dense vegetation, and adults do not guard the eggs.
Wikipedia contributors, Corydoras simulatus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T19:24:55.931396+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Corydoras simulatus Weitzman & Nijssen, 1970
- Name authority
- Weitzman & Nijssen, 1970
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Callichthyidae
- Genus
- Corydoras
- 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
- familyCallichthyidae Bonaparte, 1835
- subfamilyCorydoradinae Hoedeman, 1952
- genusCorydoras Lacepède, 1803
- speciesCorydoras simulatus Weitzman & Nijssen, 1970
Close classified relatives
These entries share the source’s genus, Corydoras. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Corydoras vittatus Nijssen, 1971 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras hastatus Eigenmann & Eigenmann, 1888 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras acutus Cope, 1872 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras araguaiaensis Sands, 1990 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras amphibelus Cope, 1872 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras solox Nijssen & Isbrücker, 1983 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras cochui Myers & Weitzman, 1954 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras bilineatus Knaack, 2002 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras ambiacus Cope, 1872 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras albolineatus Knaack, 2004 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras steindachneri Isbrücker & Nijssen, 1973 | CallichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Corydoras loretoensis Nijssen & Isbrücker, 1986 | CallichthyidaeChordata | 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.
- Weitzman, S. H., & Nijssen, H. (1970). Four new species and one new subspecies of the catfish genus Corydoras from Ecuador, Colombia and Brazil (Pisces, Siluriformes, Callichthyidae). Beaufortia, 18 (233): 119–132. 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:YQ27. Classification follows source parent identifiers. English common names may vary by region.