Leptolebias opalescens (Myers, 1942)
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
Leptolebias opalescens, also known as the opal pearlfish, annual tropical killifish or opalescent pearlfish, is a species of killifish in the family Aplocheilidae endemic to Brazil. This species was described as Cynolebias opalescens by George S. Myers in 1942 with the type locality given as the base of the Serra do Petrópolis, near Imbarié in the municipality of Duque de Caxias, Rio de Janeiro.
Wikipedia contributors, Leptolebias opalescens; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T23:02:42.559412+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Leptolebias opalescens (Myers, 1942)
- Name authority
- (Myers, 1942)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Cyprinodontiformes
- Family
- Rivulidae
- Genus
- Leptolebias
- 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
- genusLeptolebias Myers, 1952
- speciesLeptolebias opalescens (Myers, 1942)
Close classified relatives
These entries share the source’s genus, Leptolebias. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Leptolebias itanhaensis Costa, 2008 | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Leptolebias marmoratus (Ladiges, 1934) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Leptolebias splendens (Myers, 1942) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Leptolebias aureoguttatus (da Cruz, 1974) | RivulidaeChordata | Accepted speciesExtinction status not supplied |
| Leptolebias citrinipinnis (Costa, Lacerda & Tanizaki, 1988) | RivulidaeChordata | 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 |
|---|---|
| Cynolebias opalescens Myers, 1942 Myers, 1942 | synonym |
| Cynopoecilus nanus (da Cruz & Peixoto, 1983) (da Cruz & Peixoto, 1983) | synonym |
| Cynolebias nanus da Cruz & Peixoto, 1983 da Cruz & Peixoto, 1983 | synonym |
| Cynopoecilus opalescens (Myers, 1942) (Myers, 1942) | 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=1012172 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:3TQSR. Classification follows source parent identifiers. English common names may vary by region.