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Cypriniformes (Carps) >
Catostomidae (Suckers) > Catostominae
Etymology: Xyrauchen: Greek, xyreo = that cuts like a knife + Greek, auchen = neck (Ref. 45335).
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water demersaal; potamodroom (Ref. 126106). Temperate; 37°N - 34°N
North America: Formerly throughout medium to large rivers of Colorado River basin from Wyoming and Colorado in USA to Baja California in Mexico. Presently known only above Grand Canyon and in Lakes Mead, Mohave and Havasu on lower Colorado River in USA.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 91.0 cm TL mannelijk / geslacht onbekend; (Ref. 5723); common length : 50.0 cm TL mannelijk / geslacht onbekend; (Ref. 12193)
Adults occur in silt-bottomed to rock-bottomed backwaters near strong current and deep pools in medium to large rivers, and impoundments (Ref. 5723).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
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Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00228 - 0.01266), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref.
59153): High vulnerability (56 of 100).
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