Megalamphodus eques (Steindachner, 1882)
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
The serpae tetra (Megalamphodus eques), also known as the Red Minor tetra, Callistus tetra, jewel tetra or blood characin, is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American tetras. This species is found in South America.
Wikipedia contributors, Serpae tetra; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T23:09:10.526387+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Megalamphodus eques (Steindachner, 1882)
- Name authority
- (Steindachner, 1882)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Characiformes
- Family
- Acestrorhamphidae
- Genus
- Megalamphodus
- 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
- familyAcestrorhamphidae Eigenmann, 1907
- subfamilyMegalamphodinae Carvalho, Lima & Melo, 2024
- genusMegalamphodus Eigenmann, 1915
- speciesMegalamphodus eques (Steindachner, 1882)
Close classified relatives
These entries share the source’s genus, Megalamphodus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Megalamphodus sweglesi Géry, 1961 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Megalamphodus micropterus Eigenmann, 1915 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Megalamphodus epicharis (Weitzman & Palmer, 1997) | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Megalamphodus bentosi (Durbin, 1908) | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Megalamphodus socolofi (Weitzman, 1977) | AcestrorhamphidaeChordata | 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 |
|---|---|
| Hyphessobrycon eques (Steindachner, 1882) (Steindachner, 1882) | synonym |
| Chirodon eques Steindachner, 1882 Steindachner, 1882 | synonym |
| Hemigrammus melasopterus Eigenmann & Kennedy, 1903 Eigenmann & Kennedy, 1903 | synonym |
| Hemigrammus serpae (Durbin, 1908) (Durbin, 1908) | synonym |
| Hyphessobrycon callistus (Boulenger, 1900) (Boulenger, 1900) | synonym |
| Hyphessobrycon serpae Durbin, 1908 Durbin, 1908 | synonym |
| Tetragonopterus callistus Boulenger, 1900 Boulenger, 1900 | synonym |
| Cheirodon eques Steindachner, 1882 Steindachner, 1882 | 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.
- https://www.marinespecies.org/aphia.php?p=taxdetails&id=1533841 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:6QVZN. Classification follows source parent identifiers. English common names may vary by region.