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No image available for this species; drawing shows typical species in Nemacheilidae.
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Cypriniformes (Carps) > Nemacheilidae (Brook loaches)
Etymology: pseudoamudarjensis:Name 'pseudoamudarjensis' from word 'pseudo' and amudarjensis after being mistaken as D. amudarjensis.
背鰭 (合計) : 7; 臀鰭: 5; 脊つい: 43 - 44. This species is distinguished from its congeners by a set of characters, none of which are unique to the species: from D. turdakovi by possessing 84-86 lateral-line pores (vs. 100), a smaller dorsal fin depth 13.1-16.6% SL (vs. 17.7% SL) and a smaller anal fin depth 12.7-16.6% SL (vs. 16.9% SL), a deeper caudal peduncle 4.9-6.0% SL (vs. 4.4% SL), a wider interorbital distance 27.8-35.2% HL (vs. 24.5% HL), a shorter postorbital length 43.9-49.6% HL (vs. 51.3% HL), light-yellow abdominal area (vs. dark yellow), and a rounded snout (vs. pointed); from D. ilan by having 11 infraorbital pores (vs. 9), 7 pores in the preoperculomandibular canal (vs. 5), a straight or slightly concave lower margin of the anal fin (vs. slightly convex), and lower number of vertebrae 43-44 vertebrae (vs. 46); from D. amudarjensis by having a coarse vermiculate pattern of pale-yellowish lines on a dark-grey or brown background (vs. overall colorations plain brownish without pattern), often with a yellowish mid-lateral stripe on the caudal peduncle and the flank behind the vertical of the dorsal-fin origin (vs. absence), 84-86 lateral-line pores (vs. 90-95), caudal peduncle depth 3.5-4.5 times its length (vs. 4.8-6.0), and 43-44 vertebrae (vs. 45-47) (Ref. 133162). Body shape (shape guide): elongated; Cross section: circular.
This species is known to be found in slowly flowing, turbid water (in spring and summer), specifically within the interspaces in the bottom substrate (Ref. 133162).
Sheraliev, B. and Y. Kayumova, 2024. Dzihunia pseudoamudarjensis, a new nemacheilid loach from the Syr Darya
drainage (Teleostei: Nemacheilidae). Zootaxa 5536(1):185-192. (Ref. 133162)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
系統多様性指数 (参照 82804): PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00352 - 0.01491), b=3.01 (2.84 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (参照 69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
回復力 (参照 120179): 手段, 1.4年~4.4年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref. 59153): Low vulnerability (10 of 100). 🛈