Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Siluriformes (Catfishes) >
Aspredinidae (Banjo catfishes) > Aspredininae
Etymology: Amaralia: Because of Dr. Afranio de Amaral, name that was used by H.W. Fowler; personal communication of John Friell/Cornell University; oviraptor: Derived from the Latin ovum (ovi), meaning egg; and raptor, meaning a robber or plunderer, commonly used term for a predator, in reference to the peculiar dietary preferences observed in this species. A noun in apposition.
Eponymy: Dr Afranio Pompilio Bastos do Amaral (1894–1982) was a physician, zoologist, and herpetologist and was Director of Instituto Butantan (1919–1921 and 1928–1938). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
South America: Paraná-Paraguay River system; throughout the Paraguay River Basin in Brazil, Paraguay and northern Argentina; and Paraná drainage in Argentina and Brazil.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.3 cm SL male/unsexed; (Ref. 111083)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 3; Anal soft rays: 5 - 6; Vertebrae: 29 - 31. Amaralia oviraptor differs from its only congener, A. hypsiura, by having more dorsal-fin rays (3 vs. 2); by having a lateral contact between middle and posterior nuchal plates (vs. middle and posterior nuchal plates not contacting each other laterally); by having feeble serrations along the distal portion of the anterior margin of pectoral-fin spine (vs. absence of serrations along the anterior margin); and by its longer cleithral process (17.4-19.5 % of SL, mean 18.2 % vs. 14.0-17.2 % of SL, mean=15.5 %) (Ref. 111083).
Feeds on both the eggs and developing embryos of other catfishes (Ref. 111083).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Friel, J.P. and T.P. Carvalho, 2016. A new species of Amaralia Fowler (Siluriformes: Aspredinidae) from the Paraná-Paraguay river basin. Zootaxa 4088(4):531-546. (Ref. 111083)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00131 - 0.00762), b=3.02 (2.81 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
