Henonemus

Taxobox
name = "Henonemus"
regnum = Animalia
phylum = Chordata
classis = Actinopterygii
ordo = Siluriformes
familia = Trichomycteridae
subfamilia = Stegophilinae
genus = "Henonemus"
genus_authority = Eigenmann & Ward, 1907
type_species = "Stegophilus intermedius"
type_species_authority = Eigenmann & Eigenmann, 1889
subdivision_ranks = Binomial name
subdivision =
"Henonemus intermedius"
(Eigenmann & Eigenmann, 1889)
"Henonemus macrops"
(Steindachner, 1882)
"Henonemus punctatus"
(Boulenger, 1887)
"Henonemus taxistigma"
(Fowler, 1914)
"Henonemus triacanthopomus"
DoNascimiento & Provenzano, 2006


synonyms = "Cobitiglanis" Fowler, 1914

"Henonemus" is a genus of catfishes (order Siluriformes) of the family Trichomycteridae. It includes five species, "H. intermedius", "H. macrops", "H. punctatus", "H. taxistigma", and "H. triacanthopomus".cite journal|title=The Genus "Henonemus" (Siluriformes: Trichomycteridae) with a Description of a New Species from Venezuela|first=Carlos|last=DoNascimiento|coauthors=Provenzano, Francisco|journal=Copeia|year=2006|issue=2|pages=198–205|doi=10.1643/0045-8511(2006)6 [198:TGHSTW] 2.0.CO;2|volume=2006|doilabel=10.1643/0045-8511(2006)6[198:TGHSTW]2.0.CO;2] 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]

Though the monophyly of "Henonemus" has previously been in doubt, leading to this genus being placed in synonymy with "Stegophilus". However, monophyly has been argued for in 2006 and the genus was also recognized in a 2007 checklist of catfishes.

"H. intermedius" originates from the Araguaia River basin in Brazil. "H. macrops" and "H. punctatus" both are known from the Amazon River basin, the former from Brazil and the latter from Brazil, Ecuador, and Peru. "H. taxistigma" inhabits the Rupununi River basin in Guyana. "H. triacanthopomus" has been collected in the Apure and Arauca Rivers and in Caño Macareo in the Orinoco Delta, but is probably distributed through the entire middle and lower reaches of the Orinoco River basin.

Fish of the genus "Henonemus" have an opercle with two odontodes (though "H. triacanthopomus" differs from other "Henonemus" in that there are three or four odontodes in specimens greater than 80 millimetres or 3.1&nbs;in SL) and the teeth of the most posterior row on the premaxilla and the dentary proximally turned to the midline then abruptly bent laterally in the distal half, and arranged in a compact band. They may grow about 4.1–9.4 centimetres (1.6–3.7 in) SL.FishBase species|genus=Henonemus|species=punctatus|year=2007|month=July] FishBase species|genus=Henonemus|species=triacanthopomus|year=2007|month=July]

References