Nematogenys inermis
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| Nematogenys inermis Guichenot, 1848 |
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Nematogenys inermis is a kind of catfish, and the only extant species in the family Nematogenyiidae. This fish originates from fresh water in central Chile.[2]
The body is naked (without scales) and elongate. There are three pairs of barbels: chin (mental) barbels, maxillary barbels, and nasal barbels. There is no adipose fin. The opercle lacks spines.[2]
Nematogenyidae and Trichomycteridae are sister groups that together form a clade that is sister to the families Callichthyidae, Scoloplacidae, Astroblepidae, and Loricariidae.[3]
One extinct species, Nematogenys cuivi, has been described in this genus.
[edit] References
- ^ World Conservation Monitoring Centre (1996). Nematogenys inermis. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 15 June 2007.
- ^ a b Nelson, Joseph, S. (2006). Fishes of the World. John Wiley & Sons, Inc.. ISBN 0471250317.
- ^ Diogo, Rui; Chardon, Michel; Vandewalle, Pierre (January 2006). "On the osteology and myology of the cephalic region and pectoral girdle of Nematogenys inermis (Ghichenot, 1848), with comments on the autapomorphies and phylogenetic relationships of the Nematogenyidae (Teleostei : Siluriformes)" (PDF). Belg. J. Zool. 136 (1): 15–24. http://www.naturalsciences.be/institute/associations/rbzs_website/bjz/back/pdf/BJZ%20136(1)/Volume%20136(1),%20pp.%2015-24.pdf.
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