Lithodoras dorsalis (Valenciennes, 1840)
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
Lithodoras dorsalis, the rock-bacu, is the only species in the genus Lithodoras of the catfish (order Siluriformes) family Doradidae. This species originates from the Amazon basin in Brazil and estuaries near Cayenne, French Guiana. These fish feed on the leaves of macrophytes. When the forests are flooded, they feed exclusively on fruits and seeds, acting as an agent of seed dispersal. Reproduction occurs once a year and juveniles are often seen in large numbers in the estuary of the Amazon. These fish reach a length of 100 centimetres (39 in) TL and a weight of up to 15 kilograms (33 lb).
Wikipedia contributors, Lithodoras; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T23:04:10.548507+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Lithodoras dorsalis (Valenciennes, 1840)
- Name authority
- (Valenciennes, 1840)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Doradidae
- Genus
- Lithodoras
- 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
- familyDoradidae Bleeker, 1858
- genusLithodoras Bleeker, 1862
- speciesLithodoras dorsalis (Valenciennes, 1840)
Close classified relatives
No other member of this genus is present in the selected snapshot.
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Megalodoras paucisquamatus Van der Stigchel, 1946 Van der Stigchel, 1946 | synonym |
| Doras papilionatus De Filippi, 1853 De Filippi, 1853 | synonym |
| Doras lithogaster Kner, 1855 Kner, 1855 | synonym |
| Doras dorsalis Valenciennes, 1840 Valenciennes, 1840 | synonym |
| Doras papillionatus De Filippi, 1853 De Filippi, 1853 | 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=1014374 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:6QKJX. Classification follows source parent identifiers. English common names may vary by region.