Hassar (genus)

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Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Doradidae
Subfamily: Doradinae
Genus: Hassar
C. H. Eigenmann & R. S. Eigenmann, 1888
Type species
Oxydoras orestis
Steindachner, 1875

Hassar is a genus of thorny catfishes native to South America.


There are currently five recognized species in this genus:[1][2]


Like other doradids, Hassar species have a row of scutes on each side of their body, though they are more subdued.[3] Hassar species grow to approximately 15.7–25.0 centimetres (6.2–9.8 in) SL.[1]

In the aquarium[edit]

Hassar species are very rarely imported for the aquarium hobby, and the most commonly imported species is H. orestis. Care of this species is not straightforward; they are hard to acclimate if not in good condition at the point of sale. They are always wild caught. However, once settled in they are easier to care for. These fish should be provided with dense vegetation to feel comfortable. They are not aggressive, though smaller fish are very shy in the presence of larger fish.[3]


  1. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2013). Species of Hassar in FishBase. February 2013 version.
  2. ^ a b Sabaj Pérez, M.H. & Birindelli, J.L.O. (2013): Hassar shewellkeimi, a new species of thorny catfish (Siluriformes: Doradidae) from the upper Tapajós basin, Brazil. Proceedings of the Academy of Natural Sciences of Philadelphia, 162: 133-156.
  3. ^ a b "PlanetCatfish::Catfish of the Month::November 2000". PlanetCatfish.com. 2006-10-07. Retrieved 2007-06-20.