Cranoglanis
| Cranoglanis | |
|---|---|
 | |
| Cranoglanis bouderius | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Siluriformes |
| Family: | Cranoglanididae G. S. Myers, 1931 |
| Genus: | Cranoglanis W. K. H. Peters, 1881 |
| Type species | |
| Cranoglanis sinensis W. K. H. Peters, 1881 | |
| Synonyms | |
| |
Cranoglanis is the only genus of armorhead catfishes.
Taxonomy
[edit]Cranoglanis bouderius was first described as Bagrus bouderius in 1846 by John Richardson based on a Chinese watercolor painting.[1] Wilhelm Peters later described Cranoglanis along with a new species, Cranoglanis sinensis. Otto Koller (1926) described a new species, Pseudotropichthys multiradiatus, which was synonymized with Cranoglanis by George Myers (1931), who also named the family Cranoglanididae. Jayaram (1955) synonymized C. multiradiatus and C. sinensis under C. bouderius.[1]
The Cranoglanididae are closely related to the North American family Ictaluridae. These two families are sister taxa in the superfamily Ictaluroidea.[2]
Cranoglanis has had a convoluted taxonomic history, at times having been considered a monotypic genus with C. bouderius as the only valid species.[3][4] A 2026 analysis of DNA revealed two clades within the genus: Clade A inhabits the Pearl, Red, and Nandujiang drainage systems, while Clade B is restricted to the middle Xijiang system. The named species belong to Clade A, while Clade B is suggested to be an undescribed, cryptic species.[4]
Species
[edit]The following species are recognized by FishBase:[5][6]
- Cranoglanis bouderius (J. Richardson, 1846) – Guangdong[1]
- Cranoglanis caolangensis V. H. Nguyễn, 2005
- Cranoglanis henrici (Vaillant, 1893) – Red River[1]
- Cranoglanis multiradiatus (Koller, 1926) – Hainan[1]
- Cranoglanis songhongensis V. H. Nguyễn, 2005
Distribution and habitat
[edit]These fish are found in large freshwater rivers in China and Vietnam.[7]
Appearance and anatomy
[edit]These fish have short dorsal fins. The caudal fins are deeply forked. The eyes are large. Their bodies are scaleless, though rough, bony plates are located on the tops of their heads. These fish have four pairs of barbels.[7]
See also
[edit]References
[edit]- 1 2 3 4 5 Ng, Heok Hee; Kottelat, Maurice. "Cranoglanis henrici (Vaillant, 1893), a valid species of cranoglanidid catfish from Indochina (Teleostei, Cranoglanididae)" (PDF). Zoosystema. 22 (4): 847–852. Archived from the original (PDF) on 2006-11-19. Retrieved 2007-06-04.
- ↑ 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". Mol Phylogenet Evol. 41 (3): 636–62. Bibcode:2006MolPE..41..636S. doi:10.1016/j.ympev.2006.05.044. PMID 16876440.
- ↑ 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.
- 1 2 Huang, Xing-Pu; Li, Yan-Qiao; Wu, Tong; Huang, Qi; Wan, Ling-Lin; Xie, Shao-Lin; Zou, Ji-Xing; Wei, Gui-Feng; Zhang, Qun (28 May 2026). "Phylogeography of Cranoglanis (Teleostei: Cranoglanididae) Reveals Discordance Between Nominal Species and Maternal Lineages: A Broadly Distributed Clade Co-Occurring with a Cryptic Endemic in the Pearl River". Animals. 16 (11): 1648. doi:10.3390/ani16111648. PMC 13255799. PMID 42278082.
- ↑ Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Cranoglanis". FishBase. December 2011 version.
- ↑ Bailly N (ed.). "Cranoglanis Peters, 1881". FishBase. World Register of Marine Species. Retrieved 2026-06-22.
- 1 2 Nelson, Joseph S. (2006). Fishes of the World. John Wiley & Sons, Inc. ISBN 0-471-25031-7.