Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Gymnotiformes (Knifefishes) >
Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Apteronotus: Greek, apteros = without wings / (in this cases, fins) + Greek, noton = back (Ref. 45335); caudimaculosus: From the Latin caudi for tail and maculosus for spots, in reference to the spots on the tail (Ref. 50581).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 28.7 cm TL male/unsexed; (Ref. 50581)
Short description
Identification keys | Morphology | Morphometrics
Anal spines: 0; Anal soft rays: 146 - 154. Two clear bands encircling the caudal peduncle; first caudal band with irregular dark spots throughout its development (Ref. 50581).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
de Santana, C.D., 2003. Apteronotus caudimaculosus n. sp. (Gymnotiformes: Apteronotidae), a sexually dimorphic black ghost knifefish from the Pantanal, Western Brazil, with a note on the monophyly of A. albifrons species complex. Zootaxa 252:1-11. (Ref. 50581)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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