Xyliphius

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Xyliphius
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Aspredinidae
Subfamily: Hoplomyzontinae
Genus: Xyliphius
Eigenmann, 1912
Type species
Xyliphius magdalenae
Eigenmann, 1912
Binomial name

Xyliphius barbatus
Alonso de Arámburu & Arámburu, 1962
Xyliphius kryptos
Taphorn & Lilystrom, 1983
Xyliphius lepturus
Orcés, 1962
Xyliphius lombarderoi
Risso & Risso, 1964
Xyliphius magdalenae
Eigenmann, 1912
Xyliphius melanopterus
Orcés, 1962

Xyliphius is a genus of catfishes (order Siluriformes) of the family Aspredinidae. It includes six species, X. barbatus, X. kryptos, X. lepturus, X. lombarderoi, X. magdalenae, and X. melanopterus.[1]

This genus appears to be widespread in the Magdalena, Orinoco, Amazon, and Paraguay-Paraná River systems.[2] X. barbatus originates from the Paraguay-Paraná River basin and X. lombarderoi from the Paraná River basin in Argentina. X. kryptos occurs in the Lake Maracaibo basin. X. lepturus is known from the upper Amazon and Orinoco River basins of Colombia, Ecuador and Venezuela. X. magdalenae inhabits the Magdalena River basin in Colombia. X. melanopterus is distributed in the upper Amazon and Orinoco River basins.[1] These fishes are most common in deeper waters.[2]

Xyliphius includes moderately sized aspredinids, ranging from 8.8–14.7 centimetres (3.5–5.8 in) SL.[2][3][4][5][6][7][8] Species of this genus are distinguished from all other aspredinids by having highly reduced eyes, toothless premaxillae, a row of fleshy papillae projecting anteriorly off the lower lip, flattened unculi and unculiferous tubercles flattened. These species also have the openings of the anterior nares with papillae and no dark saddles on the body.[2]

[edit] References

  1. ^ a b Ferraris, Carl J., Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa 1418: 1–628. 
  2. ^ a b c d Friel, John Patrick (1994-12-13). "A Phylogenetic Study of the Neotropical Banjo Catfishes (Teleostei: Siluriformes: Aspredinidae)" (PDF). . Duke University, Durham, NC Retrieved on 2007-08-07.
  3. ^ "Xyliphius barbatus". FishBase. Ed. Ranier Froese and Daniel Pauly. Aug 2007 version. N.p.: FishBase, 2007.
  4. ^ "Xyliphius kryptos". FishBase. Ed. Ranier Froese and Daniel Pauly. Aug 2007 version. N.p.: FishBase, 2007.
  5. ^ "Xyliphius lepturus". FishBase. Ed. Ranier Froese and Daniel Pauly. Aug 2007 version. N.p.: FishBase, 2007.
  6. ^ "Xyliphius lombarderoi". FishBase. Ed. Ranier Froese and Daniel Pauly. Aug 2007 version. N.p.: FishBase, 2007.
  7. ^ "Xyliphius magdalenae". FishBase. Ed. Ranier Froese and Daniel Pauly. Aug 2007 version. N.p.: FishBase, 2007.
  8. ^ "Xyliphius melanopterus". FishBase. Ed. Ranier Froese and Daniel Pauly. Aug 2007 version. N.p.: FishBase, 2007.
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