EXHIBIT 4.1

            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

   We consent to the reference to our firm under the caption "Experts-
Independent Registered Public Accounting Firm" and to the use of our report
dated June 18, 2008 in the Amendment No. 1 to the Registration Statement (File
No. 333-150843) and related Prospectus of Claymore Securities Defined
Portfolios, Series 496.

                                                          /s/ Grant Thornton LLP
                                                          ----------------------
                                                              GRANT THORNTON LLP


Chicago, Illinois
June 18, 2008