Pterobunocephalus

Taxobox
name = "Pterobunocephalus"
regnum = Animalia
phylum = Chordata
classis = Actinopterygii
ordo = Siluriformes
familia = Aspredinidae
subfamilia = Aspredininae
genus = "Pterobunocephalus"
genus_authority = Fowler, 1943
type_species = "Bunocephalus albifasciatus"
type_species_authority = Fowler, 1943
subdivision_ranks = Binomial name
subdivision =
"Pterobunocephalus depressus"
(Haseman, 1911)
"Pterobunocephalus dolichurus"
(Delsman, 1941)


synonyms = "Petacara" Böhlke, 1959

"Pterobunocephalus" is a genus of catfishes (order Siluriformes) of the family Aspredinidae. It includes two species, "P. depressus" and "P. dolichurus".cite journal|url=http://silurus.acnatsci.org/ACSI/library/biblios/2007_Ferraris_Catfish_Checklist.pdf|title=Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types|first=Carl J., Jr.|last=Ferraris|journal=Zootaxa|volume=1418|pages=1–628|year=2007|format=PDF]

Distribution

The genus is widespread in the Orinoco, Amazon and Paraguay-Paraná River systems and typically occur at depths greater than 5 metres. "P. depressus" originates from the Amazon, Orinoco, and Paraguay River basins, while "P. dolichurus" is known from Amazon River basin of Brazil and Peru.

Description

"Pterobunocephalus" is genus of small to medium sized aspredinid species.cite paper|url=http://www.cumv.cornell.edu/pdf/Friel_Ph.D._Thesis_1994.pdf|title=A Phylogenetic Study of the Neotropical Banjo Catfishes (Teleostei: Siluriformes: Aspredinidae)|author=Friel, John Patrick|publisher=Duke University, Durham, NC|date=1994-12-13|accessdate=2007-08-07|format=PDF] "P. depressus" grows to about 8.9 centimetres SL while "P. dolichurus" grows to about 6.7 cm SL.FishBase species|genus=Pterobunocephalus|species=depressus|year=2007|month=Aug] FishBase species|genus=Pterobunocephalus|species=dolichurus|year=2007|month=Aug] Members of this genus are distinguished from all other aspredinids by the following characters having an extremely depressed (flattened) head and body, having the head ornamentation highly reduced or absent, often having a distinct notch in the upper jaw, and having 10–20 anal fin rays. Females of this genus carry embryos directly attached to the ventral surface of their bodies, which also distinguishes them from all other aspredinids.

External links

*cite web|url=http://tolweb.org/Pterobunocephalus/15260|last=Friel|first=John P.|title=Pterobunocephalus Fowler 1943|date=14 April 2000|publisher=Tree of Life Web Project|accessdate=2007-08-07

References