Classification / Names
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Siluriformes (Catfishes) >
Sisoridae (Sisorid catfishes) > Glyptosterninae
Etymology: Pseudexostoma: Greek, pseudes = false + Greek, exo = outside + Greek, stoma = mouth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bottenlevande. Temperate
Asia: known only from the upper Dayinjiang (an upper branch of the Irrawaddy River), China.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 11.1 cm SL hane/ej könsbestämd; (Ref. 57980)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 5; Mjukstrålar i analfenan: 3 - 4. This species is distinguished from Pseudexostoma brachysoma and P. longipterus by the following characters: posterior margin of lower lip with 3 notches, depth of middle one the same as lateral ones lateral ones (vs. shallower), length of 2 smaller median lobes of lower lip the same length as lateral lobes (vs. longer); pelvic fin I, 1-5 (vs. I, 3-4); base iof adipose fin shorter, 28.8-39.8% SL (vs. 36.1-46.0); caudal peduncle deeper, depth 6.4-8.3% SL, 32.6-42.7% in length of caudal peduncle (vs. 4.2-6.9 in depth and 20-33.7 in length); premaxillary tooth band with 18-22 teeth (vs. 16-18), it is divided into 2 and are connected partially (vs. isolated) (Ref. 57980).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Zhou, W., Y. Yang, X. Li and M.-H. Li, 2007. Review of the catfish genus Pseudexostoma (Siluriformes: Sisoridae) with description of a new species from the Upper Salween (Nujiang) Basin of China. Raffles Bull. Zool. 55 (1):147-155. (Ref. 57980)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00260 - 0.01333), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
