Olivaichthys is a genus of velvet catfishes endemic to Argentina.
| Olivaichthys | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Diplomystidae |
| Genus: | Olivaichthys Arratia, 1987 |
| Type species | |
| Diplomystes viedmensis MacDonagh 1931
| |
Recently several authors have synonymized this genus with Diplomystes.[1] A molecular analysis has proposed that trans-Andean Diplomystes and the cis-Andean Olivaichthys are so closely related (in addition to the close morphological similarity), that Olivaichthys should not be recognized. However, this is strange as recent divergence is unlikely with the species on either side of the Andes.[2]
Species
edit- Olivaichthys cuyanus (Ringuelet, 1965)
- Olivaichthys mesembrinus (Ringuelet, 1982)
- Olivaichthys viedmensis (MacDonagh, 1931) (Otuno)
References
edit- Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Olivaichthys". FishBase. December 2011 version.
- ^ Lundberg, John G.; Berra, Tim M.; Friel, John P. (March 2004). "First description of small juveniles of the primitive catfish Diplomystes (Siluriformes: Diplomystidae)" (PDF). Ichthyological Exploration of Freshwaters. 15 (1): 71–82. Archived from the original (PDF) on 2009-03-26.
- ^ Sullivan, JP; Lundberg JG; Hardman M (2006). "A phylogenetic analysis of the major groups of catfishes (Teleostei: Siluriformes) using rag1 and rag2 nuclear gene sequences". Molecular Phylogenetics and Evolution. 41 (3): 636–62. Bibcode:2006MolPE..41..636S. doi:10.1016/j.ympev.2006.05.044. PMID 16876440.
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