How do you count the number of rows when you have multiple non-continues selections

IT WORKS!!!!!!!!

Here is the finished code.

Sub ReverseRows()
'
' ReverseRows Macro
' Flip selected signal
'
'User selects selects the desired rows an then they go to dialog-special-constants selects
'the range of cells between, and including, columns "C" and "O" that are with in the user selected rows.

Dim C As Long
Dim I As Long, J As Long
Dim r As Long
Dim NewData As Variant
Dim OldData As Variant
Dim rng As Range

'''''Check if there is data
    If Range("A1").Value <> "CONDUIT NUM" Then
        Exit Sub
    End If
'''''Flip selected rows about the WIRENO column !!!!At this time only one continues selection can be flipped more then one selection will cause error!!!!
    Selection.SpecialCells(xlCellTypeConstants, 2).Select
    Set rng = Selection
    For Each rng In Selection.Areas
        OldData = rng.Value 'the values of the selected range is stored in OldData
        ReDim NewData(1 To rng.Rows.Count, 1 To rng.Columns.Count) 'Arrey for number of rows(value changes) and number of columns (value should always be 13) the user selected
        For I = 1 To UBound(OldData, 1) 'number of rows to process
            r = r + 1
                For J = UBound(OldData, 2) To 1 Step -1 'number of columns to proces
                    C = C + 1
                    NewData(r, C) = OldData(I, J) 'current row being processed from OldData. flips cell values about column "I" staring with the right side moving moving to the left. The values new location is stored in NewData.
                Next J
            C = 0
        Next I
        r = Empty
        rng = NewData 'the new value locations are applied to the current selection
    Next rng
End Sub

Thank you Izandol & xladept! I really appreciate the help you provided!