Xyrauchen texanus

Razorback sucker, Xyrauchen texanus Green River, Utah Eggs  

Razorback sucker, Xyrauchen texanus, 737, 746 White sucker, Catostomus commersoniL 188, 654 

Waddell, B. and T. May. 1995. Selenium concentrations in the razorback sucker (Xyrauchen texanus) substitution of non-lethal muscle plugs for muscle tissue in contaminant assessment. Arch. Environ. Contamin. Toxicol. 28 321-326. 

Hamilton, S.J. and B. Waddell. 1994. Selenium in eggs and milt of razorback sucker (Xyrauchen texanus) in the middle Green River, Utah. Arch. Environ. Contamin. Toxicol. 27 195-201. 

Figure 5. Spectrophotometric UV absorbance of photoprotective substance from the skin of razorback sucker Xyrauchen texanus). Absorbance maximum occurs at 294 nm, the broad shoulders of the absorbance curve would provide protection from UV wavelengths less than and greater than 294 nm. [From Fabacher and Little 68.]

Table 1. Absorption maximum (A ax) amount of photoprotective substance in methanol extracts of various tissues from rainbow trout Oncorhychus mykiss) and razorback suckers Xyrauchen texanus). [from Fabacher and Little 68]

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