Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Otomorpha
Subcohors: Ostariophysi
Sectio: Otophysa
Ordo: Siluriformes
Familia: Doradidae
Genus: Hassar
Species: H. affinis – H. gabiru – H. orestis – H. shewellkeimi – H. wilderi
Name
Hassar Eigenmann & Eigenmann, 1888
Type species: Oxydoras orestis Steindachner, 1875
References
Arce H, M., Reis, R. E., Geneva, A. J. & Sabaj Pérez, M. H.; (2013): Molecular phylogeny of thorny catfishes (Siluriformes: Doradidae), 67 (3): 560–577. DOI: 10.1016/j.ympev.2013.02.021
Eigenmann, C. H. & Eigenmann, R. S.; 1888: Preliminary notes on South American Nematognathi. I. Proceedings of the California Academy of Sciences, (Series 2) 1 (2): 119–172.
Hassar is a genus of thorny catfishes native to South America.
Species
There are currently five recognized species in this genus:[1][2]
Hassar affinis (Steindachner, 1881)
Hassar gabiru Birindelli, Fayal & Wosiacki, 2011
Hassar orestis (Steindachner, 1875)
Hassar shewellkeimi Sabaj Pérez & Birindelli, 2013[2]
Hassar wilderi Kindle, 1895
Description
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
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]
References
Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Hassar". FishBase. February 2013 version.
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.
"PlanetCatfish::Catfish of the Month::November 2000". PlanetCatfish.com. 2006-10-07. Retrieved 2007-06-20.
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