Pseudobagrus

Pseudobagrus
Temporal range: Middle Miocene[1]
The two extant species fulvidraco at top, and nudiceps
Scientific classification Edit this 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

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

  1. ^ a b c 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.
  2. ^ a b 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.
  3. ^ 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. doi:10.11646/zootaxa.1418.1.1. Archived from the original (PDF) on 28 March 2025.
  4. ^ 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.
  5. ^ 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.

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