Taxonomy & naming
Lepidocharax burnsi was formally described in 2011 by Ferreira, Menezes, and Quagio-Grassiotto on the basis of specimens collected from a South American river system in Brazil. Eschmeyer's Catalog of Fishes recognises the valid name as Lepidocharax burnsi Ferreira, Menezes & Quagio-Grassiotto, 2011. The genus Lepidocharax is placed within the family Characidae, the enormously diverse assemblage of Neotropical and African characins that spans hundreds of genera and thousands of species.
The genus name Lepidocharax combines the Greek lepis (scale) with Charax, a well-known genus and root word within the Characidae, alluding to scalation features that distinguish the genus. The specific epithet burnsi is a patronym, honouring an individual named Burns; the original description provides the dedication. Because the genus was erected at the same time as the species, the two names are tied: Lepidocharax currently contains only this one species, making it a monotypic genus.
Morphology
Lepidocharax burnsi is a small characid; precise published size data are sparse in accessible literature, but the species is consistent with the small body plan typical of many miniaturised or near-miniaturised Neotropical tetras, likely reaching only a few centimetres in total length. The body plan is the laterally compressed, fusiform shape common to small characins, with the complement of fins — dorsal, adipose, anal, paired pectorals and pelvics, and forked caudal — typical of the family.
The original description distinguishes Lepidocharax from related genera on the basis of scalation and osteological characters. Beyond these diagnostic features, detailed morphometric and colour data available in the non-specialist English literature are limited; researchers requiring precise counts and measurements should consult the 2011 type description directly.
Habitat
Lepidocharax burnsi is a freshwater fish from Brazil, but detailed locality and habitat data are not widely reproduced in accessible English-language sources beyond the type description. Like many small characids from lowland and sub-montane river systems of South America, it is presumed to inhabit streams or minor river channels associated with the broader Neotropical freshwater ichthyofauna of its drainage basin.
Data on water chemistry preferences — temperature, pH, hardness — are not established in the literature available at the time of writing. Given the species' Brazilian origin and its position in the Characidae, conditions broadly similar to those of other small Neotropical tetras from comparable drainages are a reasonable working assumption, but this remains speculation in the absence of published environmental records from the type locality.
Feeding
No specific dietary data for Lepidocharax burnsi have been published in sources accessible to date. Small characids of this general body plan are typically opportunistic micro-predators or omnivores, taking small invertebrates, microcrustaceans, and organic detritus in the water column and at the substrate. Whether the species shows any dietary specialisation cannot be confirmed from available records.
Mating
Reproductive behaviour has not been documented in the literature for Lepidocharax burnsi. The species has not been reported in the aquarium hobby, so captive observations are absent. By analogy with the majority of small characids, egg-scattering open spawning with no parental care would be the expected mode, with adhesive or semi-adhesive eggs deposited among fine-leaved plants or bottom substrate and abandoned by both parents. These inferences from family-level patterns cannot substitute for actual observations of this species.
Breeding
No breeding records exist for Lepidocharax burnsi in captivity or in the wild beyond the limited information captured in the original description. The species has not been established in the ornamental-fish trade, so hobbyist breeding accounts are absent. Until the species is collected, kept, and bred in aquaria, or until field reproductive studies are published, nothing concrete can be stated about clutch size, incubation period, or larval development.
In the aquarium
Lepidocharax burnsi is not currently available in the aquarium trade and has not been reported in hobbyist collections. Its small size and characid body plan suggest it would be a delicate nano-tank subject if it were ever to appear commercially, but any husbandry recommendations would be speculative in the absence of kept specimens.
Aquarists interested in rare or undescribed small Neotropical tetras should note that this species is known primarily from its type series; any specimens that reach the trade should be treated with care and documented thoroughly, as captive observations would add meaningfully to what is known of the species.
Conservation
Lepidocharax burnsi has not been assessed by the IUCN Red List as of 2026, and carries a status of Not Evaluated. Nothing is published about population size, range extent, or specific threats to the species. Its very limited profile in accessible literature makes it impossible to comment on current conservation status beyond noting that, like many recently described species from South American river systems, it may be vulnerable to the general pressures — habitat degradation, deforestation, and altered hydrology — that affect freshwater fish communities across Brazil.
The absence of an IUCN assessment does not imply that the species is secure; it reflects the lag between formal description and the resources available for Red List evaluation of newly named taxa. Researchers with access to the type drainage are best placed to contribute field data that would support a future assessment.