Jquery to pull from ONLY a TR cell that has a specific class

Is there a way to pull ONLY the check box list that have a dummy class of CSS?  Maybe a tr attribute that has that dummy class?  Basically this is pulling from a table that is dynamically created.  I have a check box in cell 1 that will be a Select all/Unselect all values. I do not want that value to be pull because it is set to ON and does not include my values that I need like (value;2ndValue).  So is there a way in Jquery to pull just the check box list that have a certain class?
function myFunction() { var theSplitString = $('#tblDynamicCheckBoxList input:checked').map(function () { return $(this).val(); }).get().join("|"); $("#hfTestDynamic").val(theSplitString); }