Schizopygopsis

Schizopygopsis is a genus of cyprinid fish. Most species are endemic to river basins in the Himalayas and Qinghai–Tibet Plateau of China, but S. stoliczkai extends into the highlands of Afghanistan, Iran, northern India, Kyrgyzstan, Pakistan and Tajikistan.[1][2]

Schizopygopsis
Schizopygopsis stoliczkai
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Genus: Schizopygopsis
Steindachner, 1866
Type species
Schizopygopsis stoliczkai
Steindachner, 1866
Species

See text.

S. younghusbandi is up to almost 50 cm (1.6 ft) in total length, but the remaining species generally only reach about two-thirds of that size.[1] Similar to Platypharodon, Schizopygopsis have a horny sheath on the lower jaw and spoon-shaped teeth that they use to scrape off periphyton and algae from stones, but they will also eat benthic invertebrates.[3][4]

Schizopygopsis is a part of the schizothoracines (snowtrout and allies), which also includes the genera Aspiorhynchus, Chuanchia, Diptychus, Gymnodiptychus, Gymnocypris, Oxygymnocypris, Platypharodon, Ptychobarbus, Schizopyge and Schizothorax.[5]

Species

There are currently eight recognized species in this genus:[1]

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References
  1. Froese, Rainer and Pauly, Daniel, eds. (2019). Species of Schizopygopsis in FishBase. February 2019 version.
  2. Delin Qi, Songchang Guo, Yan Chao, Qinghui Kong, Changzhong Li, Mingzhe Xia,Baosheng Xie and Kai Zhao (2015). The biogeography and phylogeny of schizothoracine fishes (Schizopygopsis) in the Qinghai-Tibetan Plateau. Zoologica Scripta 44(5). doi:10.1111/zsc.12116
  3. 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
  4. 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
  5. 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


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