Helogenes marmoratus Günther, 1863
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
Helogenes marmoratus is a species of freshwater ray-finned fishes belonging to the family Cetopsidae, the whale catfishes. This species is fiund in Brazil, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela. It is found in the Atlantic drainages of the Guianas, the upper Orinoco and Rio Negro systems, and the upper Amazon River basin. This species grows to a length of 7.3 cm (2.9 in).
Wikipedia contributors, Helogenes marmoratus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:45:16.950773+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Helogenes marmoratus Günther, 1863
- Name authority
- Günther, 1863
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Cetopsidae
- Genus
- Helogenes
- 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
- familyCetopsidae Bleeker, 1858
- subfamilyHelogeninae Regan, 1911
- genusHelogenes Günther, 1863
- speciesHelogenes marmoratus Günther, 1863
Close classified relatives
These entries share the source’s genus, Helogenes. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Helogenes gouldingi Vari & Ortega, 1986 | CetopsidaeChordata | Accepted speciesExtinction status not supplied |
| Helogenes castaneus (Dahl, 1960) | CetopsidaeChordata | Accepted speciesExtinction status not supplied |
| Helogenes uruyensis Fernández-Yépez, 1967 | CetopsidaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Helogenes amazonae Delsman, 1941 Delsman, 1941 | synonym |
| Helogenes unidorsalis Glodek & Carter, 1978 Glodek & Carter, 1978 | synonym |
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.
- Günther, A. (1863). On new species of fishes from the Essequibo. Annals and Magazine of Natural History (Series 3), v. 12 (no. 72): 441–443. https://doi.org/10.1080/00222936308681556 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:3KH39. Classification follows source parent identifiers. English common names may vary by region.