Morgan Stanley Dean Witter & Co. said it is changing the name of its credit card division to Discover Financial Services Inc.

The switch from Novus Services Inc. is part of a larger initiative to promote the Discover brand being initiated by David Nelms, who joined the Riverwoods, Ill.-based division in September from MBNA Corp. after his predecessor, Thomas R. Butler, resigned.

In addition, all merchants that accept Discover cards will receive new decals with both the Discover and Novus marks. Novus is the name of the company's merchant network, and a spokeswoman, Beth Metzler, said there were no plans to eliminate that name.

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