Pimelodus is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of catfish

Catfish

Catfishes are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the heaviest and longest, the Mekong giant catfish from Southeast Asia and the second longest, the wels catfish of Eurasia, to detritivores...

es (order

Order (biology)

In scientific classification used in biology, the order is# a taxonomic rank used in the classification of organisms. Other well-known ranks are life, domain, kingdom, phylum, class, family, genus, and species, with order fitting in between class and family...

 Siluriformes) of the family

Family

In human context, a family is a group of people affiliated by consanguinity, affinity, or co-residence. In most societies it is the principal institution for the socialization of children...

 Pimelodidae

Pimelodidae

Pimelodidae, commonly known as the long-whiskered catfishes, is a family of catfishes .-Taxonomy:Pimelodidae has undergone much revision. Currently, the family contains about 30 genera and about 90 recognized and known but unnamed species...

.

Pimelodus is a non-monophyletic

Monophyly

In common cladistic usage, a monophyletic group is a taxon which forms a clade, meaning that it contains all the descendants of the possibly hypothetical closest common ancestor of the members of the group. The term is synonymous with the uncommon term holophyly...

 assemblage with about 24 species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

; it is defined by a set of non-derived

Derived

In phylogenetics, a derived trait is a trait that is present in an organism, but was absent in the last common ancestor of the group being considered. This may also refer to structures that are not present in an organism, but were present in its ancestors, i.e. traits that have undergone secondary...

 characters. Species level taxonomy of Pimelodus is still poorly known as well as the phylogenetic relationships within and of the genus. The high number of species currently included in Pimelodus, allied to the wide variability in morphology and color pattern of those taxa, pose difficulties for a complete systematic revision of the genus.

A core group within Pimelodus has been diagnozed that includes P. maculatus, P. blochii, P. coprophagus, P. grosskopfii, P. jivaro, and P. pictus.

Species

• Pimelodus absconditus -
• Pimelodus albicans -
• Pimelodus albofasciatus -
• Pimelodus altissimus -
• Pimelodus argenteus -
• Pimelodus atrobrunneus -
• Pimelodus blochii -
• Pimelodus brevis -
• Pimelodus britskii -
• Pimelodus coprophagus -
• Pimelodus fur -
• Pimelodus garciabarrigai -
• Pimelodus grosskopfii -
• Pimelodus halisodous -
• Pimelodus heraldoi -
• Pimelodus jivaro -
• Pimelodus joannis -
• Pimelodus maculatus -
• Pimelodus microstoma -
• Pimelodus mysteriosus -
• Pimelodus navarroi -
• Pimelodus ornatus -
• Pimelodus ortmanni -
• Pimelodus pantaneiro -
• Pimelodus paranaensis -
• Pimelodus parvus -
• Pimelodus pictus
  Pimelodus pictus
  Pimelodus pictus, also known as the pictus cat, is a small member of the Pimelodidae family of catfishes, native to the Amazon and Orinoco river basins and commonly kept as a pet in freshwater aquariums. It was described by Franz Steindachner in 1876...
  
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• Pimelodus pintado -
• Pimelodus platicirris -
• Pimelodus pohli
  Pimelodus pohli
  Pimelodus pohli is a species of catfish belonging to the family Pimelodidae. It is only found in the São Francisco River, Brazil, and its tributaries....
  
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• Pimelodus punctatus -
• Pimelodus stewarti -
• Pimelodus tetramerus -