bio.wikisort.org - Animal

Platynematichthys notatus, the coroatá or striped catfish, is a species of catfish (order Siluriformes) of the monotypic genus Platynematichthys of the family Pimelodidae.[1][2] It is native to the Amazon and Orinoco basins in South America.[3] In the Orinoco this distinctly spotted species reaches up to 1 m (3.3 ft) in standard length, but it reportedly only reaches about half that size in the Amazon.[1]

Platynematichthys
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Pimelodidae
Genus:	Platynematichthys Bleeker, 1858
Species:	P. notatus
Binomial name
Platynematichthys notatus (Jardine, 1841)
Synonyms
Pimelodus notatus Jardine, 1841 Bagrus nigropunctatus Kner, 1858 Platypogon caerulorostris Starks, 1913

Platynematichthys and its sister group Brachyplatystoma are the only genera in the tribe Brachyplatystomatini. These two genera are characterized by two synapomorphies; these include a gas bladder divided into an anterior portion and a triangular posterior portion, as well as a ventral crest under the cleithrum, the main bone supporting the pectoral fins.[4]

References

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