Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Otomorpha
Subcohors: Ostariophysi
Sectio: Otophysa
Ordo: Cypriniformes
Subordo: Cyprinoidei
Familia: Cyprinidae
Subfamilia: Schizopygopsinae
Genus: Diptychus
Species (2): D. maculatus – D. sewerzowi
Name
Diptychus Steindachner, 1866: 787
Type species: Diptychus maculatus Steindachner, 1866, by monotypy.
References
Primary references
Steindachner, F. 1866. Ichthyologische Mittheilungen. (IX.) [With subtitles I-VI.]. Verhandlungen der Kaiserlich-Königlichen zoologisch-botanischen Gesellschaft in Wien 16: 761–796, pls. 13-18.
Diptychus maculatus
Diptychus is a genus of cyprinid freshwater fish, consisting of two species found in Himalaya and the Tibetan Plateau of China, India, Nepal and Pakistan, ranging west to the Tien Shan Mountains and Central Asia.[1][2] The type species is the scaly osman, Diptychus maculatus. The name is derived from the Greek word di, meaning "two", and the Greek word ptyx, meaning "fold". Diptychus is up to 70 cm (2.3 ft) in total length.[1]
Diptychus is a part of the schizothoracines (snowtrout and allies), which also includes the genera Aspiorhynchus, Chuanchia, Gymnodiptychus, Gymnocypris, Oxygymnocypris, Platypharodon, Ptychobarbus, Schizopyge, Schizopygopsis and Schizothorax.[3]
Species
There are two recognized species in this genus:[1]
Diptychus maculatus Steindachner, 1866 (Scaly osman)
Diptychus sewerzowi Kessler, 1872
References
Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Diptychus". FishBase. May 2018 version.
Li, G.; Y. Tang; R. Zhang; and K. Zhao (2016). Phylogeography of Diptychus maculatus (Cyprinidae) endemic to the northern margin of the QTP and Tien Shan region. BMC Evolutionary Biology 16(1). doi:10.1186/s12862-016-0756-3
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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