Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Gymnotiformes (Knifefishes) >
Hypopomidae (Bluntnose knifefishes)
Etymology: Microsternarchus: Greek, mikros = small + Greek, sternon = breast + Greek, archos = anus (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic. Tropical
South America: Brazil.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Short description
Identification keys | Morphology | Morphometrics
Anal soft rays: 152 - 173. This species is distinguished from its congeners by the following set of characters: distinct irregular suborbital blotches present, with chromatophores more concentrated near to the rictus and immediately below the orbits; caudal filament length in both sexes 35.1-36.8% TL; small black spots overlying the mid-dorsal region of the body; number of displaced haemal spines, three or four; dentary morphology, coronoid process of dentary continues posteriorly beyond dentary hook; anal-fin rays 152-173 (Ref 132455).
Cross section: compressed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sousa, T., W.B. Wosiacki, J. Muriel-Cunha, B.S. Prudente and R.S. Peixoto, L.A.W. Sousa, 2024. A new species of the electric fish Microsternarchus Fernández-Yépez 1968 (Gymnotiformes: Hypopomidae) from the lower Amazon basin, Brazil. Zootaxa 5448 (4): 508-518. (Ref. 132455)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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