Pseudobagrus
| Pseudobagrus Temporal range: Middle Miocene[1] | |
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| The two extant species fulvidraco at top, and nudiceps | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Siluriformes |
| Family: | Bagridae |
| Genus: | Pseudobagrus Bleeker, 1858 |
Pseudobagrus is a genus of bagrid catfishes that inhabit streams and rivers throughout East Asia.[2] These species fossils were found in Japan.[1] The two Coreobagrus species, C. brevicorpus and C. ichikiwai, are both treated in some recent literature as valid in Pseudobagrus.[3] It has been noted that Pelteobagrus may not be monophyletic if species placed in Pseudobagrus and Coreobagrus were excluded.[3] The taxonomy of this genus is unclear and many authorities treat it as a junior synonym of Tachysurus.[4]
Pseudobagrus species are small- to mid-sized bagrid catfishes.[2] These fish all have an inferior mouth; narial openings widely separated; four pairs of barbels; top of head covered by skin in most species; two dorsal fin spines; pelvic fin small; and caudal fin emarginate, truncate or round.[5]
Species
[edit]All recognized extant species in this genus and its synonyms Coreobagrus and Pelteobagrus are now listed in Tachysurus.
The fossil species, †Pseudobagrus ikiensis Watanabe & Uyeno, 1999 is known from the Middle Miocene of Japan. This species was described as being morphologically close to the extant Tachysurus fulvidraco and indistinguishable from the extant Tachysurus nudiceps.[1]
References
[edit]- 1 2 3 Watanabe, Katsutoshi; Uyeno, Teruya (1999-12-01). "Fossil bagrid catfishes from Japan and their zoogeography, with description of a new species, Pseudobagrus ikiensis". Ichthyological Research. 46 (4): 397–412. Bibcode:1999IchtR..46..397W. doi:10.1007/BF02673982. ISSN 1616-3915.
- 1 2 Ng, Heok Hee; Freyhof, Jörg (March 2007). "Pseudobagrus nubilosus, a new species of catfish from central Vietnam (Teleostei: Bagridae), with notes on the validity of Pelteobagrus and Pseudobagrus". Ichthyol. Explor. Freshwaters. 18 (1): 9–16.
- 1 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. doi:10.11646/zootaxa.1418.1.1. Archived from the original (PDF) on 28 March 2025.
- ↑ Maurice Kottelat (2013). "Inland fishes of Southeast Asia" (PDF). The Raffles Bulletin of Zoology. Supplement No 27: 266. Archived from the original (PDF) on 2015-01-06.
- ↑ Li, Jie; Chen, Xianglin; Chan, Bosco P.L. (2005). "A new species of Pseudobagrus (Teleostei: Siluriformes: Bagridae) from southern China" (PDF). Zootaxa. 1067: 49–57. doi:10.11646/zootaxa.1067.1.3. S2CID 86000113.