Auchenipterus

Auchenipterus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Auchenipteridae
Subfamily:
Genus:	Auchenipterus; Valenciennes, 1840
Type species
	Hypophthalmus nuchalis; Spix & Agassiz, 1829
Species
	See text.
Synonyms
	Euanemus; Müller & Troschel, 1842; Auchenopterus; Agassiz, 1846; Ceratocheilus; Miranda Ribeiro, 1918; Osteomystax; Whitley, 1940;

Auchenipterus is a genus of driftwood catfishes (order Siluriformes).^[1]^[2]

Taxonomy[]

The genus is hypothesized to be monophyletic, diagnosed by the shared presence of grooves in the ventral surface of the head that accommodate adducted mental barbels. The presence of papillae on the dorsal and medial surface of the ossified maxillary barbel of mature males is also a possible synapomorphy, but in three species this cannot be confirmed as there are no adult male specimens yet discovered.^[1]

This genus contains 11 species:

Fowler, 1915
(Cope, 1878)
C. H. Eigenmann, 1912
& , 1999
C. H. Eigenmann, 1912
Valenciennes, 1840
C. H. Eigenmann & R. S. Eigenmann, 1888
& , 1999
(Boulenger, 1895)
(Spix & Agassiz, 1829)
(A. Miranda-Ribeiro, 1918)

Distribution[]

The neotropical genus Auchenipterus is widely distributed in most of the river systems east of the Andean Cordilleras.^[1] The species are found through the Orinoco River, Amazon River, and Rio de La Plata basins, and the coastal drainages of the Guianas; one species, A. menezesi, originates from the and basins of northeastern Brazil.^[1] In some regions they are abundant enough to be commercially important.^[1]

Description[]

Auchenipterus species have a number of pronounced sexually dimorphic features of the head, maxillary barbels, and anal fin.^[1]

References[]

^ ^a ^b ^c ^d ^e ^f Ferraris, Carl J. Jr.; Vari, Richard P. (1999). "The South American catfish genus Auchenipterus Valenciennes, 1840 (Ostariophysi: Siluriformes: Auchenipteridae): monophyly and relationships, with a revisionary study". Zoological Journal of the Linnean Society. 126 (4): 387–450. doi:10.1111/j.1096-3642.1999.tb00156.x.
^ Ferraris, Carl J. Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa. 1418: 1–628.

[Ferraris-1] ^ ^a ^b ^c ^d ^e ^f Ferraris, Carl J. Jr.; Vari, Richard P. (1999). "The South American catfish genus Auchenipterus Valenciennes, 1840 (Ostariophysi: Siluriformes: Auchenipteridae): monophyly and relationships, with a revisionary study". Zoological Journal of the Linnean Society. 126 (4): 387–450. doi:10.1111/j.1096-3642.1999.tb00156.x.

[Ferraris2007-2] Ferraris, Carl J. Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa. 1418: 1–628.

[1]

[2]