Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Gymnotiformes (Knifefishes) >
Sternopygidae (Glass knifefishes)
Etymology: Eigenmannia: From Eigenmann, 1910, researcher of faunistic studies (Ref. 45335); macuxi: Named after the indigenous people whose home territory is near the type locality of the new species in Roraima, Brazil; noun in apposition.
Eponymy: Professor Dr Carl Henry Eigenmann (1863–1927) was a German-born American ichthyologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
South America: Brazil.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 13.2 cm TL male/unsexed; (Ref. 132316)
Short description
Identification keys | Morphology | Morphometrics
Anal soft rays: 166 - 219. This species is distinguished from all its congeners by the following set of characters: lateral line stripe extending from first perforated lateral line scale to the distal portion of caudal filament; with
superior midlateral stripe with origin posterior to end of body cavity; anal-fin hyaline; caudal filament corresponding to 15.2-43.1% LEA; mouth subterminal; pectoral-fin rays ii,14-16; A 166-219; scale rows above lateral line at vertical through posterior tip of pectoral fin 10-13; lateral line scales 100-128; premaxillary teeth 22-28; dentary teeth 19-23; endopterygoid teeth 7-10; depth of posterodorsal expansion on infraorbitals 1 + 2 half as long as infraorbitals 1 + 2 length; basibranchial 1 unossified; precaudal vertebrae 13; length of coronomeckelian bone corresponding to 20% of Meckel's cartilage length (Ref. 132316).
Cross section: compressed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Dutra, G.M., L.A.W. Peixoto, L.M. Donin, C.D. de Santana and N.A. Menezes, 2024. Integrative taxonomy reveals a new species of the glass knifefish genus Eigenmannia Jordan & Evermann, 1896 (Teleostei: Gymnotiformes: Sternopygidae) from the Rio Branco basin, Brazil. J. Fish Biol. 105(3):825-840. (Ref. 132316)
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 = 0.5000 [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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