Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: pseudoamudarjensis: Name 'pseudoamudarjensis' from word 'pseudo' and amudarjensis after being mistaken as D. amudarjensis.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Temperate
Asia: Uzbekistan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 10.7 cm SL male/unsexed; (Ref. 133162)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 7; Anal soft rays: 5; Vertebrae: 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).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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 Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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