Hassar (genus)

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Hassar
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Doradidae
Subfamily: Doradinae
Genus: Hassar
Eigenmann & Eigenmann, 1888
Binomial name
Hassar affinis
(Steindachner, 1881)
Hassar orestis
(Steindachner, 1875)
Hassar wilderi
Kindle, 1895

Hassar is a genus of catfishes (order Siluriformes) of the family Doradidae. It includes three species, H. affinis, H. orestis, and H. wilderi.[1]

Contents

[edit] Taxonomy

Hassar was described by Carl H. Eigenmann and Rosa Smith Eigenmann in 1888 with Oxydoras orestis as the type species.[1] Hassar is a more derived genus within the family and is classified in the subfamily Doradinae.[2]

[edit] Distribution

Hassar species are distributed in South America. H. affinis originates from the Parnaíba River basin.[3] H. orestis is found in the Amazon, Orinoco and Essequibo River basins.[4] H. wilderi inhabits the Tocantins River basin.[5]

[edit] Description

Like other doradids, Hassar species have a row of scutes on each side of their body, though they are more subdued.[6] Hassar species grow to approximately 20–25 centimetres (8–10 in) SL.[3][4][5]

[edit] In the aquarium

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.[6]

[edit] References

  1. ^ a b Ferraris, Carl J., Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa 1418: 1–628. 
  2. ^ Eler, Eduardo S.; Dergam, Jorge A.; Vênere, Paulo C.; Paiva, Lílian C.; Miranda, Gabriela A.; Oliveira, Alessandro A. (2007). "The karyotypes of the thorny catfishes Wertheimeria maculata Steindachner, 1877 and Hassar wilderi Kindle, 1895 (Siluriformes: Doradidae) and their relevance in doradids chromosomal evolution" (PDF). Genetica 130: 99–103. doi:10.1007/s10709-006-0023-4. 
  3. ^ a b "Hassar affinis". FishBase. Ed. Ranier Froese and Daniel Pauly. June 2007 version. N.p.: FishBase, 2007.
  4. ^ a b "Hassar orestis". FishBase. Ed. Ranier Froese and Daniel Pauly. June 2007 version. N.p.: FishBase, 2007.
  5. ^ a b "Hassar wilderi". FishBase. Ed. Ranier Froese and Daniel Pauly. June 2007 version. N.p.: FishBase, 2007.
  6. ^ a b PlanetCatfish::Catfish of the Month::November 2000. PlanetCatfish.com (2006-10-07). Retrieved on 2007-06-20.
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