Lithodoras dorsalis

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Lithodoras dorsalis
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Doradidae
Genus: Lithodoras
Bleeker, 1862
Species: L. dorsalis
Binomial name
Lithodoras dorsalis
(Valenciennes, 1840)
  • Doras dorsalis
    Valenciennes in Cuvier and Valenciennes, 1840
  • Doras papilionatus
    De Filippi, 1853
  • Doras lithogaster
    Kner, 1855
  • Megalodoras paucisquamatus
    Van der Stigchel, 1946

Lithodoras dorsalis, the Rock-bacu, is the only species in the genus Lithodoras of the catfish (order Siluriformes) family Doradidae.[1] This species originates from the Amazon basin in Brazil and estuaries near Cayenne, French Guiana.[2] These fish feed on the leaves of macrophytes. When the forests are flooded, they feed exclusively on fruits and seeds, acting as an agent of seed dispersal.[3] Reproduction occurs once a year and juveniles are often seen in large numbers in the estuary of the Amazon.[2] These fish reach a length of 100 centimetres (39 in) TL and a weight of up to 15 kilograms (33 lb).[2]


  1. ^ "Lithodoras dorsalis". Integrated Taxonomic Information System. Retrieved May 22, 2007. 
  2. ^ a b c Froese, Rainer and Pauly, Daniel, eds. (2011). "Lithodoras dorsalis" in FishBase. December 2011 version.
  3. ^ Kubitzki, Klaus; Ziburski, Albrecht (1994). "Seed Dispersal in Flood Plain Forests of Amazonia". Biotropica. The Association for Tropical Biology and Conservation. 26 (1): 30–43. doi:10.2307/2389108. JSTOR 2389108.