| Bibarba bibarba | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Cobitidae |
| Genus: | Bibarba |
| Species: | B. bibarba |
| Binomial name | |
| Bibarba bibarba Y. X. Chen & Y. F. Chen, 2007 | |
Bibarba bibarba is a species of loach that is found in the Chengjiang River of the Long River system in China. It is the only known congener of Bibarba parvoculus, a troglobitic species described in 2015, from which it is believed to have evolutionarily split in the Early Miocene.
Description
B. bibarba is a surface-dwelling species with normal eyes. Males display a duplication of the lamina circularis on the second and third pectoral rays. The coracoid, mesocoracoid, and scapula are stouter in males, and the three bones are fused with the cleithrum. It differs from B. parvoculus, by having lower vertebral counts, a narrower anterior part of the frontal bone at the orbital region, and increased sexual dimorphism.
References
- Froese, Rainer; Pauly, Daniel (eds.). "Bibarba bibarba". FishBase. November 2014 version.
- Bohlen J; Li F; Šlechtová V. (2020). "Phylogenetic position of the genus Bibarba as revealed from molecular genetic data (Teleostei: Cobitidae)". Ichthyological Exploration of Freshwaters. 29: 297–304.
- ^ You He; Yongxia Chen; Jian Yang; Lawrence M Page (2021). "Phylogenetic analysis and osteological comparison of the cave-dwelling spined loach, Bibarba parvoculus (Cypriniformes: Cobitidae), and its surface congener". Zoological Journal of the Linnean Society. 191 (4): 1059–1074. doi:10.1093/zoolinnean/zlaa073.
| Taxon identifiers | |
|---|---|
| Bibarba bibarba | |
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