Towed thermistor chain measurements are examined for patches of ''turbulent mixing'' occurring within salt finger interfaces in the Caribbean staircase (the Caribbean Sheets and Layers Transects (C-SALT) experimental area). Patches are identified as regions having short overturning internal waves, resembling Kelvin--Helmholtz billows, and higher-wave number, more random fluctuations. For a patch turbulent dissipation rate of ≈2¿10-8 W kg-1 (based on other C-SALT measurements and consistent with the observed billow heights of 2--5 m) and an observed patch occurrence of ≈1%, the mean dissipaton rate is ≈2¿10-10 W kg-1. This amount of turbulence would increase the buoyancy flux of heat and salt by 10--20% over fluxes from fingers acting alone and would increase the flux ratio by about 10% to 0.83, close to the value inferred from conductivity-temperature-depth data by Schmitt et al. (1987). ¿ American Geophysical Union 1990