* MGI Pharma Inc., of Minneapolis, named Basil Mundy vice president of marketing.

* Ontogen Corp., of San Diego, appointed William Ripka vice president of research.

* Ontogeny Inc., of Cambridge, Mass., named Lee Rubin vice president of research.

* Sangstat Medical Corp., of Menlo Park, Calif., named James Hinrichs chief financial officer.

* Siga Pharmaceuticals Inc., of New York, appointed to its board of directors Donald Howard, former vice president and chief financial officer of Salomon Brothers, of New York; and Terence Downer, former vice president of corporate development for Janssen Pharmaceutica Inc., an affiliate of Johnson & Johnson, of New Brunswick, N.J.

* Sunrise Technologies International Inc., of Fremont, Calif., appointed to its board of directors Dale Bowerman, formerly president and chief executive officer of Southwest Health Alliance, of Austin, Texas; and Timothy Marcotte, vice president and chief financial officer of Sunrise.

* Techniclone Corp., of Tustin, Calif., appointed to its board of directors Rockell Hankin, CEO of Hankin & Co., of Santa Monica.

* Transcend Therapeutics Inc., of Cambridge, Mass., named John Whalen executive vice president and Nicholas Harvey senior vice president of finance.

* Vysis Inc., of Downers Grove, Ill., named James Habschmidt chief financial officer.

* Xcyte Therapies Inc., of Seattle, named Mark Murray vice president of business affairs.