Taxonomy & naming
Cyphocharax aspilos was described by Richard P. Vari in 1992. It belongs to the family Curimatidae — the curimatas, a large Neotropical family of small to medium detritivorous characins — within the order Characiformes, distinct from the Serrasalmidae (piranhas, pacus, silver dollars) that dominate much of this atlas section. The genus Cyphocharax is one of several curimatid genera (alongside Curimata, Steindachnerina and others) recognised by the Catalog of Fishes (Eschmeyer, California Academy of Sciences) as the current, valid placement for these deep-bodied, toothless-jawed grazers.
As with many Curimatidae, Cyphocharax aspilos is not a well-known species outside specialist ichthyological literature; it has no established common name in general use, and the cached record base for this account is limited to FishBase, IUCN and GBIF listings rather than dedicated field or hobby accounts. Where information is not available, this article says so rather than filling the gap.
Morphology
Cyphocharax aspilos reaches a maximum recorded length of 7 in standard length, a modest, unremarkable size for the family. Like other curimatids it has the characteristic body plan of the group: a moderately deep, laterally compressed body, a small subterminal or ventrally positioned mouth adapted for grazing rather than grasping prey, and no oral teeth suited to biting flesh — curimatids feed by sifting fine sediment and organic matter, not by predation.
Detailed colouration and fin-count data for this species were not present in the cached sources, and no aquarium photography or hobby description was found to supplement the taxonomic record. Rather than guess at pattern or finnage beyond the generic curimatid body plan, this account leaves those specifics open pending better-documented material.
Habitat
The species is recorded from freshwater tributaries feeding Lake Maracaibo, in the Maracaibo basin of northwestern Venezuela — a distribution well outside the Amazon, Orinoco and Paraná systems that carry most of the characins in this atlas section. FishBase describes its habitat as swamps and rivers, consistent with the still-to-slow-flowing, sediment-rich margins that curimatids typically favour for their detritus-grazing lifestyle.
It is described as benthopelagic and strictly freshwater. No specific water-chemistry values (temperature, pH, hardness) were found in the cached sources for this species; given the swamp and river habitats reported, it likely experiences warm, tropical lowland conditions typical of the Maracaibo basin, but this account does not assign numeric ranges that are not documented.
Feeding
Cyphocharax aspilos is recorded as a detritus-feeder, in keeping with the Curimatidae generally. The family's small, ventrally oriented mouths and lack of biting dentition are built for sifting organic particles, biofilm and fine sediment from the substrate and water column rather than for taking whole prey, plant matter in bulk, or other fish.
No aquarium feeding account was found in the cached sources. In captivity, curimatids of this type are typically maintained on sinking foods that mimic a detritivore diet — fine flake, algae wafers, and prepared foods with a vegetable/detrital base — though this is inferred from the family's known biology rather than from a documented care account for this particular species.
Mating
No courtship, pairing or spawning-behaviour data for Cyphocharax aspilos were found in the cached sources. Curimatidae as a family are broadly understood to be open-water or substrate egg-scatterers with no parental care, consistent with the reproductive strategy of most small to mid-sized Neotropical characins that graze rather than guard territory, but this has not been specifically documented for this species and should not be presented as confirmed fact for it.
No external sexual dimorphism has been documented for this species in the sources reviewed.
Breeding
Breeding of Cyphocharax aspilos has not been documented in the sources available for this account — there is no confirmed breeding mode, and the cache explicitly notes that aquarium-specific data is limited, with breeding "likely not achieved in captivity." It is not known to be bred commercially or in the hobby.
Given its family placement, an egg-scattering strategy without parental care would be consistent with related curimatids, but this account does not assign that mode to C. aspilos as established fact. Prospective breeders should treat this species as essentially unbred in aquaria.
In the aquarium
Cyphocharax aspilos has essentially no documented aquarium-keeping history in the sources reviewed for this account — it does not appear to be an established part of the ornamental trade, and no hobbyist care profile was found. Any care recommendations here are necessarily general, drawn from its family biology rather than from a tested account for this species.
At a modest adult size of 7 in SL, a curimatid grazer of this type would be expected to need a spacious, well-filtered tank with a soft substrate and sinking, detritus-like foods, kept as part of a shoal in the manner typical of many mid-sized Neotropical characins. Because the species is not established in the trade, prospective keepers should not expect to source it easily, and any specimens encountered should be treated as effectively unstudied in captivity.
Conservation
Cyphocharax aspilos is assessed by the IUCN Red List as Least Concern (2022.2). This reflects the absence of documented major threats to the species within its Lake Maracaibo tributary range rather than an extensively studied, abundant population — the cached record base for this species is thin outside the taxonomic and distributional listings (FishBase, IUCN, GBIF).
No species-specific conservation pressures, trade data or population trend information were found in the sources reviewed. As with many single-basin curimatids, general watch items for freshwater fish of the Maracaibo basin — habitat degradation, water-quality change and wetland loss — would be the relevant long-term considerations, though none of these have been documented as active threats to this species specifically.