Melanorivulus nigromarginatus Costa, 2018
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.
Identity & source status
- Scientific name
- Melanorivulus nigromarginatus Costa, 2018
- Name authority
- Costa, 2018
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Cyprinodontiformes
- Family
- Rivulidae
- Genus
- Melanorivulus
- 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
- orderCyprinodontiformes
- familyRivulidae Myers, 1925
- genusMelanorivulus Costa, 2006
- speciesMelanorivulus nigromarginatus Costa, 2018
Close classified relatives
These entries share the source’s genus, Melanorivulus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Melanorivulus crixas (Costa, 2007) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus cyanopterus (Costa, 2005) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus decoratus (Costa, 1989) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus faucireticulatus (Costa, 2008) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus giarettai (Costa, 2008) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus illuminatus (Costa, 2007) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus karaja (Costa, 2007) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus litteratus (Costa, 2005) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus modestus (Costa, 1991) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus pindorama Costa, 2012 | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus rubromarginatus (Costa, 2007) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Melanorivulus zygonectes (Myers, 1927) | RivulidaeChordata | 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.
- Costa, W. J. E. M. (2018). Three new species of the killifish genus Melanorivulus from the Rio Paraná Basin, central Brazilian Cerrado (Cyprinodontiformes, Aplocheilidae). Zoosystematics and Evolution, 94. https://doi.org/10.3897/zse.94.21321 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:D55KB. Classification follows source parent identifiers. English common names may vary by region.