Chuanchia labiosa

Chuanchia labiosa is a species of cyprinid fish that is only found in the upper reaches of the Yellow River basin in the Qinghai–Tibet Plateau of China, where it mostly inhabits slow-flowing cold waters at altitudes above 3,000 m (9,800 ft).[1] It is the only member of its genus, but is related to other schizothoracines (snowtrout and allies) like Aspiorhynchus, Diptychus, Gymnodiptychus, Gymnocypris, Oxygymnocypris, Platypharodon, Ptychobarbus, Schizopyge, Schizopygopsis and Schizothorax.[2][3][4]

Chuanchia labiosa
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Genus: Chuanchia
Herzenstein, 1891
Species:
C. labiosa
Binomial name
Chuanchia labiosa
Herzenstein, 1891

Chuanchia labiosa reaches up to 25 cm (10 in) in length.[1] Its lower jaw has a horny sheath, which it uses to scrape invertebrates and algae off the bottom.[5] It has seriously declined because of habitat loss, overfishing and introduced species, and is now listed as vulnerable on China's Red List.[5]

References
  1. Froese, Rainer and Pauly, Daniel, eds. (2019). "Chuanchia labiosa" in FishBase. May 2019 version.
  2. Tang, Y.; C. Li; K. Wanghe; C. Feng; C. Tong; F. Tian; and K. Zhao (2019). Convergent evolution misled taxonomy in schizothoracine fishes (Cypriniformes: Cyprinidae). Molecular Phylogenetics and Evolution 134: 323–337 doi:10.1016/j.ympev.2019.01.008
  3. Qi, D.; Y. Chao; Y. Zhao; M. Xia; and R. Wu (2018). Molecular evolution of myoglobin in the Tibetan Plateau endemic schizothoracine fish (Cyprinidae, Teleostei) and tissue-specific expression changes under hypoxia. Fish Physiology and Biochemistry 44(2): 557–571. doi:10.1007/s10695-017-0453-1.
  4. Qi, D.; Y. Chao; S. Guo; L. Zhao; T. Li; F. Wei; and X. Zhao (2012). Convergent, Parallel and Correlated Evolution of Trophic Morphologies in the Subfamily Schizothoracinae from the Qinghai-Tibetan Plateau. PLoS ONE 7(3): e34070. doi:10.1371/journal.pone.0034070
  5. Qi, D. (2016). Fish of the Upper Yellow River. Pp. 233–252 in: G.J. Brierley et al. (eds.). Landscape and Ecosystem Diversity, Dynamics and Management in the Yellow River Source Zone. Springer Geography. doi:10.1007/978-3-319-30475-5_11


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